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Muse Spark is the first AI model in Meta's Muse family. Spark is
propriet=
ary, but some of the other models in the Muse family will be
open
sourc=
e=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0= =E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2= =A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C= =C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80= =8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0= =E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=C2=A0=E2=80=8C=C2=A0=E2=80= =8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0= =E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2= =A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C= =C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80= =8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0=E2=80=8C=C2=A0= =E2=80=8C=C2=A0
Sign Up [1] |Advertise [2]|View Online [3]=20
=
=09=09TLDR=20
=09=09TOGETHER WITH [Microsoft Azure] [4]
TLDR 2026-0=
4-09
FEEL LIKE YOUR TABS HAVE TABS? (SPONSOR) [4]=20
Developer to=
ol sprawl is real. You've got one tab for logs, another
for metrics, half=
a dozen for cloud services, and somewhere in there
is the code you're ac=
tually trying to ship.
=F0=9F=AB=A3 Stop playing hide-and-seek with yo=
ur tools. Microsoft Azure [4]
brings together everything you need to buil=
d and run software in a
single workspace.
Goodbye, hunting for the r=
ight dashboard. Hello, one unified
view=E2=80=94and a faster path to inno=
vation.
Simplify your stack with Azure =E2=86=92 [4]
=F0=9F=93=
=B1=20
BIG TECH & STARTUPS
META'S SUPERINTELLIGENCE LAB UNVEILS IT=
S FIRST PUBLIC MODEL, MUSE
SPARK (3 MINUTE READ) [5]=20
Muse Spark is=
the first AI model in Meta's Muse family. Spark is
proprietary, but some=
of the other models in the Muse family will be
open source. Muse Spark c=
an get information from content posted on
social media to link posts to l=
ocations or trending topics. Its
standard thinking mode ranks comparably =
or better than competing
models from leading AI labs. However, there are =
still performance gaps
in long-horizon agentic systems and coding workflo=
ws. Meta Stark is
available in the Meta AI app and website, as well as Me=
ta's API for
selected partners. It will be available to Meta's other plat=
forms in
the coming weeks.=20
ANTHROPIC LAUNCHES CLAUDE MANAGED AGENT=
S FOR BUSINESSES (1 MINUTE
READ) [6]=20
Claude Managed Agents is a su=
ite of composable APIs aimed at
developers and enterprise teams looking t=
o build and deploy
cloud-hosted AI agents at scale. It is now available i=
n public beta on
the Claude Platform. The offering targets organizations =
that need
robust, production-grade agent infrastructure without having to=
manage
background tasks. It provides features such as secure sandboxed c=
ode
execution, authentication, checkpointing, scoped permissions, and
p=
ersistent long-running sessions.=20
=F0=9F=9A=80=20
SCIENCE & FUTURIS=
TIC TECHNOLOGY
US NUCLEAR STARTUP ANTARES GETS DOE APPROVAL FOR ITS M=
ARK0 REACTOR
DEMONSTRATOR (3 MINUTE READ) [7]=20
US nuclear startup A=
ntres aims to achieve criticality for its reactor
before the 4th of July =
this year. The California-headquartered startup
is developing microreacto=
rs. After the demonstration of its Mark0
reactor, the company will work o=
n achieving electricity generation for
its Mark1 demonstration next year.=
The Department of Energy is aiming
to achieve criticality in at least th=
ree advanced nuclear reactors
before Independence Day this year as part o=
f its Reactor Pilot
Program.=20
THE 2-SIGMA PROBLEM: THE 1:1 TUTOR (1=
5 MINUTE READ) [8]=20
The technology to deliver 1:1 tutoring has finall=
y arrived. Studies
show that even having an average tutor shows significa=
nt improvement
in student scores. However, no edtech companies are buildi=
ng an AI
tutor yet, with many companies disavowing the technology's usefu=
lness
as it can't create a 100% perfect lesson plan yet. With AI, engagem=
ent
and substantive learning no longer have to be diametrically opposed. =
A
superhuman teacher will soon be buildable as AI labs continue to
impr=
ove on accuracy and hallucination problems.=20
=F0=9F=92=BB=20
PROGRA=
MMING, DESIGN & DATA SCIENCE
LIGHTFIELD SKILLS: TEACH YOUR CRM TO DO =
YOUR JOB (SPONSOR) [9]=20
Lightfield [9] is the AI-native CRM that upda=
tes itself. Its new
Skills let you define and trigger workflows like acco=
unt research,
deal scoring, and forecasting in plain English. The AI agen=
t executes
against your full CRM data graph with code execution, web sear=
ch, and
file I/O. 2,500+ startups are already on the platform.
TRY I=
T FREE FOR 3 MONTHS =E2=86=92 [9]=20
Use code TLDRTS43
THE GIT COMMAN=
DS I RUN BEFORE READING ANY CODE (4 MINUTE READ) [10]=20
This post intr=
oduces five git commands that can diagnose a codebase
before a developer =
opens a single file. Commit histories can provide a
diagnostic picture of=
a project. They tell you who built it, where the
problems cluster, and w=
hether a team is shipping with confidence or
tiptoeing around land mines.=
The commands introduced in the post
inform developers what the most chan=
ged files are, who the authors
were, where bugs cluster, whether a projec=
t is accelerating or dying,
and how often the development team is firefig=
hting. They let
developers know which code to read first and what to look=
for when
they get there.=20
FEEDBACK FLYWHEEL (18 MINUTE READ) [11] =
Every AI interaction generates a signal. These signals can be
harv=
ested and fed back into a system to turn individual experience
into colle=
ctive improvement. This creates a feedback loop that turns
each interacti=
on into an opportunity to improve the next one. The
infrastructure compou=
nds as practice feeds back into it.=20
=F0=9F=8E=81=20
MISCELLANEOUS=
MY QUEST TO SOLVE BITCOIN'S GREAT MYSTERY (68 MINUTE READ) [12]=20
=
The identity of Bitcoin's creator, Satoshi Nakamoto, has been a
myste=
ry for 17 years. Nakamoto left behind a huge corpus of texts, and
this wa=
s expanded during a recent trial where an imposter was sued for
falsely c=
laiming to be Bitcoin's creator. This article contains an
investigation t=
hat leads to the conclusion that Adam Back is Satoshi
Nakamoto. Back is a=
British cryptographer and a leading figure in the
Bitcoin movement.=20
=
CAST ADRIFT, META EMPLOYEES HAVE NO IDEA WHO THE =E2=80=98TOKEN LEGEND'=
IS
ANYMORE (2 MINUTE READ) [13]=20
Meta had an internal system calle=
d Claudeonmics that tracked
employees' token usage. It ranked the top 250=
employees and gave them
badges for high rankings. Meta's staff reportedl=
y used up about 60
trillion tokens in just 30 days, with the person in th=
e top spot
racking up 281 billion tokens. Meta has shut down the tracking=
system
due to the data being shared externally.=20
=E2=9A=A1=20
QU=
ICK LINKS
AI ADOPTION-ONLY METRICS ARE VANITY METRICS. HERE'S HOW TO =
MEASURE AI
IMPACT (SPONSOR) [14]=20
Two Allstacks research reports br=
eak AI measurement into what
matters: productivity patterns, quality sign=
als, and business
outcomes. Download them now for 4 standards that connec=
t AI usage to
ROI. [14]=20
HOW TO GET YOUR COMPANY AI PILLED (17 MINU=
TE READ) [15]=20
Ramp got 99.5% of its team active on AI tools by being=
obsessed over
every employee embracing the new technology.=20
FOR TH=
E FIRST TIME EVER, AMAZON IS CUTTING OLD KINDLES OFF FROM THE
KINDLE STOR=
E (2 MINUTE READ) [16]=20
Older Kindle e-readers will no longer be able=
to buy or download
books from the Kindle store starting on May 20.=20
=
WE'RE MISSING A MUCH BIGGER POINT ON MYTHOS (1 MINUTE READ) [17]=20
=
Mythos wasn't trained specifically for cybersecurity, it's just good
at =
it because it's good at everything.=20
TLDR IS HIRING A SENIOR SOFTWARE=
ENGINEER, APPLIED AI ($250K-$350K,
FULLY REMOTE) [18]=20
TLDR's Appl=
ied AI team is tasked with making every process at TLDR
legible to code, =
runnable by anyone, and composable into larger
workflows. Join a small, f=
ast moving team using the latest AI tools
with an unlimited token budget.=
Learn more [19].=20
THE INTL API: THE BEST BROWSER API YOU'RE NOT USIN=
G (13 MINUTE READ)
[20]=20
The Intl API can handle almost all formatt=
ing requirements directly
in the browser with zero kB of download and no =
JS bundle parsing
required.=20
VERA (WEBSITE) [21]=20
Vera is a p=
rogramming language designed for large language models
that addresses com=
mon model mistakes by making everything explicit and
verifiable.=20
A=
I ADOPTION BY THE NUMBERS (20 MINUTE READ) [22]=20
Serving tech, legal,=
and healthcare buyers is clearly fertile ground
right now, but there lik=
ely won't just be one 'winner' in each
category.=20
Love TLDR? Tell yo=
ur friends and get rewards!
Share your referral link below with frien=
ds to get free TLDR swag!=20
https://refer.tldr.tech/66662a80/ [23]=20
=
=09=09 Track your referrals here. [24]=20
Want to advertise in TLDR? =
=F0=9F=93=B0
If your company is interested in reaching an audience of=
tech
executives, decision-makers and engineers, you may want to ADVERTIS=
E
WITH US [25].=20
Want to work at TLDR? =F0=9F=92=BC
APPLY HERE=
[26], CREATE YOUR OWN ROLE [27] or send a friend's resume
to jobs@tldr.t=
ech and get $1k if we hire them! TLDR is one of INC.'S
BEST BOOTSTRAPPED =
BUSINESSES [28] of 2025.=20
If you have any comments or feedback, just =
respond to this email!=20
Thanks for reading,=20
Dan Ni [29] & Stephen F=
landers [30]=20
Manage your subscriptions [31] to our other newsletters=
on tech,
startups, and programming. Or if TLDR isn't for you, please
u=
nsubscribe [32].=20
=20
Links:
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p?utm_source=3Dtldr
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[3]
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[4] https:= //ad.doubleclick.net/ddm/trackclk/N572608.5847589TLDRMEDIALLC/B34062638.443= 026475;dc_trk_aid=3D629341585;dc_trk_cid=3D247236615;dc_lat=3D;dc_rdid=3D;t= ag_for_child_directed_treatment=3D;tfua=3D;gdpr=3D${GDPR};gdpr_consent=3D${= GDPR_CONSENT_755};gpp=3D${GPP_STRING_755};gpp_sid=3D${GPP_SID};ltd=3D;dc_td= v=3D1
[5]
https://arstechnica.com/ai/2026/04/metas-superintelligence-lab-= unveils-its-first-public-model-muse-spark/?utm_source=3Dtldrnewsletter
[6=
]
https://www.testingcatalog.com/anthropic-launches-claude-managed-agents-f= or-businesses/?utm_source=3Dtldrnewsletter
[7]
https://interestingenginee= ring.com/energy/us-antares-doe-approval-mark0-reactor-demonstrator?utm_sour= ce=3Dtldrnewsletter
[8]
https://www.mackenziemorehead.com/the-2-sigma-pro= blem-the-1-1-tutor/?utm_source=3Dtldrnewsletter
[9]
https://lightfield.ap= p/blog/introducing-skills?utm_source=3Dnewsletter&utm_medium=3Dpaid&utm_cam= paign=3Dtldr&utm_content=3Dsecondary_4-9-2026
[10]
https://piechowski.io/= post/git-commands-before-reading-code/?utm_source=3Dtldrnewsletter
[11] h= ttps://martinfowler.com/articles/reduce-friction-ai/feedback-flywheel.html?= utm_source=3Dtldrnewsletter
[12]
https://links.tldrnewsletter.com/Gs8lBo=
[13]
https://gizmodo.com/cast-adrift-meta-employees-have-no-idea-who-the= -token-legend-is-anymore-2000744189?utm_source=3Dtldrnewsletter
[14] http= s://www.allstacks.com/ai-roi-whitepapers?utm_medium=3Dmedia-buy&utm_source= =3Dlinkedin&utm_campaign=3Dtl-dr-april-2026#download
[15]
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ldrnewsletter.com/5mj9zB
[16]
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[17]
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[18]
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001e
[20]
https://polypane.app/blog/the-intl-api-the-best-browser-api-you= re-not-using/?utm_source=3Dtldrnewsletter
[21]
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source=3Dtldrnewsletter
[22]
https://www.a16z.news/p/ai-adoption-by-the-n= umbers?utm_source=3Dtldrnewsletter
[23]
https://refer.tldr.tech/66662a80/=
[24]
https://hub.sparklp.co/sub_e87ba9c7d7c0/1
[25]
https://advertise.= tldr.tech/?utm_source=3Dtldr&utm_medium=3Dnewsletter&utm_campaign=3Dadverti= secta
[26]
https://jobs.ashbyhq.com/tldr.tech
[27]
https://jobs.ashbyhq=
.com/tldr.tech/c227b917-a6a4-40ce-8950-d3e165357871
[28]
https://www.link= edin.com/feed/update/urn:li:activity:7401699691039830016/
[29]
https://tw=
itter.com/tldrdan
[30]
https://twitter.com/SteveFlanders22
[31] https:/=
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[32]
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<div style=3D"display: none; max-height: 0px; overflow: hidden;">Muse Spark=
is the first AI model in Meta's Muse family. Spark is proprietary, bu=
t some of the other models in the Muse family will be open source =E2= =80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2= =80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2= =80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2= =80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2= =80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2= =80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nb= sp;=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nb= sp;=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nb= sp;=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nb= sp;=E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C =E2=80=8C&nb= sp;=E2=80=8C =E2=80=8C </div>
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<a href=3D"
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<h1><strong>TLDR <span id=3D"date">2026-04-09</span></strong></h1>
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id=3D"sponsy-copy"><td class=3D"container" style=3D"padding: 15px 15px;">
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<a href=3D"
https://ad.doubleclick.net/ddm/t= rackclk/N572608.5847589TLDRMEDIALLC/B34062638.443026475;dc_trk_aid=3D629341= 585;dc_trk_cid=3D247236615;dc_lat=3D;dc_rdid=3D;tag_for_child_directed_trea= tment=3D;tfua=3D;gdpr=3D${GDPR};gdpr_consent=3D${GDPR_CONSENT_755};gpp=3D${= GPP_STRING_755};gpp_sid=3D${GPP_SID};ltd=3D;dc_tdv=3D1">
<span>
<strong>Feel like your tabs have ta= bs? (Sponsor)</strong>
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<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Developer tool sprawl is real. You've g=
ot one tab for logs, another for metrics, half a dozen for cloud services, = and somewhere in there is the code you're actually trying to ship.<p></p><p= >=F0=9F=AB=A3 Stop playing hide-and-seek with your tools. <a href=3D"https:= //ad.doubleclick.net/ddm/trackclk/N572608.5847589TLDRMEDIALLC/B34062638.443= 026475;dc_trk_aid=3D629341585;dc_trk_cid=3D247236615;dc_lat=3D;dc_rdid=3D;t= ag_for_child_directed_treatment=3D;tfua=3D;gdpr=3D${GDPR};gdpr_consent=3D${= GDPR_CONSENT_755};gpp=3D${GPP_STRING_755};gpp_sid=3D${GPP_SID};ltd=3D;dc_td= v=3D1" rel=3D"noopener noreferrer nofollow" target=3D"_blank"><span>Microso=
ft Azure</span></a> brings together everything you need to build and run so= ftware in a single workspace.</p>
<p>Goodbye, hunting for the right dashboard. Hello, one unified view=E2=80= =94and a faster path to innovation.</p>
<p><a href=3D"
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<h1><strong>Big Tech & Startups</strong></h1>
</div>
</div>
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<table style=3D"table-layout: fixed; width: 100%;" width=3D"100%"><tbody><t= r><td style=3D"padding:0;border-collapse:collapse;border-spacing:0;margin:0=
;" valign=3D"top">
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
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<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Farstechnica.com%2Fai%2F2026%2F04%2Fmetas-superintellige= nce-lab-unveils-its-first-public-model-muse-spark%2F%3Futm_source=3Dtldrnew= sletter/1/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/MuAF= O9HP3YjqQxE9BB0lnnKNcl9QOWnFTP7y0ML_kMA=3D452">
<span>
<strong>Meta's Superintelligence La=
b unveils its first public model, Muse Spark (3 minute read)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Muse Spark is the first AI model in Met= a's Muse family. Spark is proprietary, but some of the other models in the = Muse family will be open source. Muse Spark can get information from conten=
t posted on social media to link posts to locations or trending topics. Its=
standard thinking mode ranks comparably or better than competing models fr=
om leading AI labs. However, there are still performance gaps in long-horiz=
on agentic systems and coding workflows. Meta Stark is available in the Met=
a AI app and website, as well as Meta's API for selected partners. It will =
be available to Meta's other platforms in the coming weeks.
</span>
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<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fwww.testingcatalog.com%2Fanthropic-launches-claude-mana= ged-agents-for-businesses%2F%3Futm_source=3Dtldrnewsletter/1/0100019d71c6e0= 71-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/E2rADO9PwVPMJxi08XrlXN3rlhuo= B2i6OqKAydoGtJ4=3D452">
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<strong>Anthropic launches Claude M= anaged Agents for businesses (1 minute read)</strong>
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Claude Managed Agents is a suite of com= posable APIs aimed at developers and enterprise teams looking to build and = deploy cloud-hosted AI agents at scale. It is now available in public beta =
on the Claude Platform. The offering targets organizations that need robust=
, production-grade agent infrastructure without having to manage background=
tasks. It provides features such as secure sandboxed code execution, authe= ntication, checkpointing, scoped permissions, and persistent long-running s= essions.
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;" valign=3D"top">
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https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Finterestingengineering.com%2Fenergy%2Fus-antares-doe-ap= proval-mark0-reactor-demonstrator%3Futm_source=3Dtldrnewsletter/1/0100019d7= 1c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/ArfXB1Lai-wCCojK3mCW22P= ATjzBRc4B7JDEiyR1CPk=3D452">
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<strong>US nuclear startup Antares = gets DOE approval for its Mark0 reactor demonstrator (3 minute read)</stron=
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US nuclear startup Antres aims to achie=
ve criticality for its reactor before the 4th of July this year. The Califo= rnia-headquartered startup is developing microreactors. After the demonstra= tion of its Mark0 reactor, the company will work on achieving electricity g= eneration for its Mark1 demonstration next year. The Department of Energy i=
s aiming to achieve criticality in at least three advanced nuclear reactors=
before Independence Day this year as part of its Reactor Pilot Program.
</span>
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1 Tutor (15 minute read)</strong>
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<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
The technology to deliver 1:1 tutoring = has finally arrived. Studies show that even having an average tutor shows s= ignificant improvement in student scores. However, no edtech companies are = building an AI tutor yet, with many companies disavowing the technology's u= sefulness as it can't create a 100% perfect lesson plan yet. With AI, engag= ement and substantive learning no longer have to be diametrically opposed. =
A superhuman teacher will soon be buildable as AI labs continue to improve =
on accuracy and hallucination problems.
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<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Flightfield.app%2Fblog%2Fintroducing-skills%3Futm_source= =3Dnewsletter%26utm_medium=3Dpaid%26utm_campaign=3Dtldr%26utm_content=3Dsec= ondary_4-9-2026/1/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000= 000/crACmYZ6ROkz5Eo4RQLWFVqIdAHYI1H0gi-MuUUa7Kc=3D452">
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<strong>Lightfield Skills: Teach yo=
ur CRM to do your job (Sponsor)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
<a href=3D"
https://tracking.tldrnewslet= ter.com/CL0/https:%2F%2Flightfield.app%2Fblog%2Fintroducing-skills%3Futm_so= urce=3Dnewsletter%26utm_medium=3Dpaid%26utm_campaign=3Dtldr%26utm_content= =3Dsecondary_4-9-2026/2/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b= 5d-000000/yFJQKvkX-uWj3nWtyO_34pYBvcR3Ik3hc3WJi3DDub0=3D452" rel=3D"noopene=
r noreferrer nofollow" target=3D"_blank"><span>Lightfield</span></a> is the=
AI-native CRM that updates itself. Its new Skills let you define and trigg=
er workflows like account research, deal scoring, and forecasting in plain = English. The AI agent executes against your full CRM data graph with code e= xecution, web search, and file I/O. 2,500+ startups are already on the plat= form.
<p></p>
<p><a href=3D"
https://tracking.tldrnewsletter.com/CL0/https:%2F%2Flightfiel= d.app%2Fblog%2Fintroducing-skills%3Futm_source=3Dnewsletter%26utm_medium=3D= paid%26utm_campaign=3Dtldr%26utm_content=3Dsecondary_4-9-2026/3/0100019d71c= 6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/pynumvwDs4nrrcqr8H3nnd9bS= UStw7zj-BdMjGPBaDA=3D452" rel=3D"noopener noreferrer nofollow" target=3D"_b= lank"><span><strong>Try it free for 3 months =E2=86=92</strong></span></a> <br>Use code TLDRTS43
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re Reading Any Code (4 minute read)</strong>
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This post introduces five git commands = that can diagnose a codebase before a developer opens a single file. Commit=
histories can provide a diagnostic picture of a project. They tell you who=
built it, where the problems cluster, and whether a team is shipping with = confidence or tiptoeing around land mines. The commands introduced in the p= ost inform developers what the most changed files are, who the authors were=
, where bugs cluster, whether a project is accelerating or dying, and how o= ften the development team is firefighting. They let developers know which c= ode to read first and what to look for when they get there.
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<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fmartinfowler.com%2Farticles%2Freduce-friction-ai%2Ffeed= back-flywheel.html%3Futm_source=3Dtldrnewsletter/1/0100019d71c6e071-46cbdb8= 3-d2bf-44c3-a788-fd8476340b5d-000000/k9WZIis46Y_hOZPH1qkUD13aR_RiyNztUMo-6m= o4H3A=3D452">
<span>
<strong>Feedback Flywheel (18 minut=
e read)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Every AI interaction generates a signal=
. These signals can be harvested and fed back into a system to turn individ= ual experience into collective improvement. This creates a feedback loop th=
at turns each interaction into an opportunity to improve the next one. The = infrastructure compounds as practice feeds back into it.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa= cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi= ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;"><span style=3D"font-size: 36px;">=F0=9F= =8E=81</span></div></div>
</td></tr></tbody></table>
<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa= cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi= ng-top: 0px; padding-bottom: 0px;">
<div class=3D"text-block">
<div style=3D"text-align: center;"><strong><h1>Miscellaneous</h1></strong><= /div>
</div>
</td></tr></tbody></table>
<table bgcolor=3D"" style=3D"table-layout: fixed; width: 100%;" width=3D"10= 0%"><tbody><tr><td style=3D"padding:0;border-collapse:collapse;border-spaci= ng:0;margin:0;" valign=3D"top">
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Flinks.tldrnewsletter.com%2FGs8lBo/1/0100019d71c6e071-46= cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/b_X-mHtU5pxknddNsizU-5jkzN4z-I79l= gXavpKuRi8=3D452">
<span>
<strong>My Quest to Solve Bitcoin's=
Great Mystery (68 minute read)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
The identity of Bitcoin's creator, Sato= shi Nakamoto, has been a mystery for 17 years. Nakamoto left behind a huge = corpus of texts, and this was expanded during a recent trial where an impos= ter was sued for falsely claiming to be Bitcoin's creator. This article con= tains an investigation that leads to the conclusion that Adam Back is Satos=
hi Nakamoto. Back is a British cryptographer and a leading figure in the Bi= tcoin movement.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fgizmodo.com%2Fcast-adrift-meta-employees-have-no-idea-w= ho-the-token-legend-is-anymore-2000744189%3Futm_source=3Dtldrnewsletter/1/0= 100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/vNzrinJi0QW1l_z= VxM5BLkVd40vE5othoGvRYhq3JVc=3D452">
<span>
<strong>Cast Adrift, Meta Employees=
Have No Idea Who the =E2=80=98Token Legend' Is Anymore (2 minute read)</st= rong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Meta had an internal system called Clau= deonmics that tracked employees' token usage. It ranked the top 250 employe=
es and gave them badges for high rankings. Meta's staff reportedly used up = about 60 trillion tokens in just 30 days, with the person in the top spot r= acking up 281 billion tokens. Meta has shut down the tracking system due to=
the data being shared externally.
</span>
</span>
</div>
</td></tr></tbody></table>
</td></tr></tbody></table>
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<div class=3D"text-block">
<div style=3D"text-align: center;"><span style=3D"font-size: 36px;">=E2=9A= =A1</span></div></div>
</td></tr></tbody></table>
<table align=3D"center" bgcolor=3D"" border=3D"0" cellpadding=3D"0" cellspa= cing=3D"0" width=3D"100%"><tbody><tr><td class=3D"container" style=3D"paddi= ng-top: 0px; padding-bottom: 0px;">
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<div style=3D"text-align: center;">
<h1><strong>Quick Links</strong></h1>
</div>
</div>
</td></tr></tbody></table>
<table bgcolor=3D"" style=3D"table-layout: fixed; width: 100%;" width=3D"10= 0%"><tbody><tr><td style=3D"padding:0;border-collapse:collapse;border-spaci= ng:0;margin:0;" valign=3D"top">
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fwww.allstacks.com%2Fai-roi-whitepapers%3Futm_medium=3Dm= edia-buy%26utm_source=3Dlinkedin%26utm_campaign=3Dtl-dr-april-2026%23downlo= ad/1/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/1cJgHoSyC= XCpyCkRxBCF0irJ4PPLl8yx9P54IpGRcHw=3D452">
<span>
<strong>AI adoption-only metrics ar=
e vanity metrics. Here's how to measure AI impact (Sponsor)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Two Allstacks research reports break AI=
measurement into what matters: productivity patterns, quality signals, and=
business outcomes. Download them now for <a href=3D"
https://tracking.tldrn= ewsletter.com/CL0/https:%2F%2Fwww.allstacks.com%2Fai-roi-whitepapers%3Futm_= medium=3Dmedia-buy%26utm_source=3Dlinkedin%26utm_campaign=3Dtl-dr-april-202= 6%23download/2/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000000= /TWWZWibgfgm2uvD2XukLD7dgtSQRtGsmuLjtLAOKERM=3D452" rel=3D"noopener norefer= rer nofollow" target=3D"_blank"><span>4 standards that connect AI usage to = ROI.</span></a>
</span>
</span>
</div>
</td></tr></tbody></table>
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Flinks.tldrnewsletter.com%2F5mj9zB/1/0100019d71c6e071-46= cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/yJy2OpSCqmU6TqhxiwReZeRV5ptyyFQi8= o2zzsaKeKk=3D452">
<span>
<strong>How to get your company AI = pilled (17 minute read)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Ramp got 99.5% of its team active on AI=
tools by being obsessed over every employee embracing the new technology.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Farstechnica.com%2Fgadgets%2F2026%2F04%2Fstarting-in-may= -pre-2013-kindles-wont-be-able-to-buy-or-download-new-books%2F%3Futm_source= =3Dtldrnewsletter/1/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-0= 00000/2kjQEnqOmX-EymPAQQK5_WNN-76sDxZVb39SyVFqI54=3D452">
<span>
<strong>For the first time ever, Am= azon is cutting old Kindles off from the Kindle Store (2 minute read)</stro=
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Older Kindle e-readers will no longer b=
e able to buy or download books from the Kindle store starting on May 20.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fdanielmiessler.com%2Fblog%2Fwrong-message-from-mythos%3= Futm_source=3Dtldrnewsletter/1/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8= 476340b5d-000000/lOFV7C5hHm8sXXnjuePnCf77cQ2JmVr12mGdRPjD-Fw=3D452">
<span>
<strong>We're missing a much bigger=
point on Mythos (1 minute read)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Mythos wasn't trained specifically for = cybersecurity, it's just good at it because it's good at everything.
</span>
</span>
</div>
</td></tr></tbody></table>
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<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech%2F3b21aaf8-dea5-4127-be71-= 602d30e5001e%3Futm_source=3Dtldrnewsletter/1/0100019d71c6e071-46cbdb83-d2bf= -44c3-a788-fd8476340b5d-000000/BPGAv-aRCknXLgr06D82YjShj72WGJ7aN2dPd0jHGr8= =3D452">
<span>
<strong>TLDR is hiring a Senior Sof= tware Engineer, Applied AI ($250k-$350k, Fully Remote)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
TLDR's Applied AI team is tasked with m= aking every process at TLDR legible to code, runnable by anyone, and compos= able into larger workflows. Join a small, fast moving team using the latest=
AI tools with an unlimited token budget. <a href=3D"
https://tracking.tldrn= ewsletter.com/CL0/https:%2F%2Fjobs.ashbyhq.com%2Ftldr.tech%2F3b21aaf8-dea5-= 4127-be71-602d30e5001e/1/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340= b5d-000000/FmEo38EaKPCLW0Ocv3ZJ-O7s4UDHVFf4-uUDAt5NmZM=3D452" rel=3D"noopen=
er noreferrer" target=3D"_blank"><span>Learn more</span></a>.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fpolypane.app%2Fblog%2Fthe-intl-api-the-best-browser-api= -youre-not-using%2F%3Futm_source=3Dtldrnewsletter/1/0100019d71c6e071-46cbdb= 83-d2bf-44c3-a788-fd8476340b5d-000000/A4GQWAUQzD3vCuWVe_WPn5SVeR8SF9CCLpDzq= 4mYeoc=3D452">
<span>
<strong>The Intl API: The best brow= ser API you're not using (13 minute read)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
The Intl API can handle almost all form= atting requirements directly in the browser with zero kB of download and no=
JS bundle parsing required.
</span>
</span>
</div>
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<div class=3D"text-block">
<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fveralang.dev%2F%3Futm_source=3Dtldrnewsletter/1/0100019= d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b5d-000000/ei09FiOMAdacPMBUlsyLn= TdL5rBDNZW7Eh_YoA49E98=3D452">
<span>
<strong>Vera (Website)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Vera is a programming language designed=
for large language models that addresses common model mistakes by making e= verything explicit and verifiable.
</span>
</span>
</div>
</td></tr></tbody></table>
<table align=3D"center" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" wi= dth=3D"100%"><tbody><tr><td class=3D"container" style=3D"padding: 15px 15px=
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<span>
<a href=3D"
https://tracking.tldrnewsletter.= com/CL0/https:%2F%2Fwww.a16z.news%2Fp%2Fai-adoption-by-the-numbers%3Futm_so= urce=3Dtldrnewsletter/1/0100019d71c6e071-46cbdb83-d2bf-44c3-a788-fd8476340b= 5d-000000/f8aVYQaexcywK8Mg6YU-D1xeJEUwXSjdECIXVFq3saM=3D452">
<span>
<strong>AI Adoption by the Numbers = (20 minute read)</strong>
</span>
<span style=3D"font-family: "Helvetica Neue", Helvetica, Arial, V= erdana, sans-serif;">
Serving tech, legal, and healthcare buy= ers is clearly fertile ground right now, but there likely won't just be one=
'winner' in each category.
</span>
</span>
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