James Cham @jamescham
@bloombergbeta; of the San Gabriel Valley; investing in 2050; working to improve the second derivative; looking for troublesome ringleaders! Palo Alto, CA Joined October 2007-
Tweets33K
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time to pull out all of your old notes on englebart and bootstrapping because that's going to be one of the better guides to what is about to happen...
there are really only two kinds of businesses in the world: scale businesses— where the answer to the next unit of growth is always yes, provided it makes basic economic sense boutique businesses— where the answer is always no, unless it fits the characteristic of the business
there are really only two kinds of businesses in the world: scale businesses— where the answer to the next unit of growth is always yes, provided it makes basic economic sense boutique businesses— where the answer is always no, unless it fits the characteristic of the business
Building agents and automations with Replit keeps getting better. You can now test your timed automations live and get a realtime trace right in your dashboard.
Grace Hopper laid out the vision for vibe coding more than 70 years ago.
Grace Hopper laid out the vision for vibe coding more than 70 years ago.
Not saying it was like Steve Jobs visiting Bell Labs but I could see the spark in their eyes…
AI economists and AI researchers: this is *excellent*. Details below, but as I feel like I've said in every talk on this topic since my slides said "GPT-2", 1) AI technical capabilities are better and improving quicker than you think, 2) impact on economy *much* slower. 1/13
Still processing my trip back to SF. Haven't been there in three years. The transformation is remarkable. If you don't live in SF your mental model is probably out of date, it has rebounded incredibly strong. TBH the city is looking better and feels more vibrant than any of the…
Love science, comics, or incredible cute cartoon portraits? Go see my cousin Jorge Cham of @PHDcomics tomorrow (Thursday) 4-6 pm in Los Altos!
Love science, comics, or incredible cute cartoon portraits? Go see my cousin Jorge Cham of @PHDcomics tomorrow (Thursday) 4-6 pm in Los Altos!
I'm doing a lot of free upcoming lightning lessons, workshops, and livestreams for people building with AI: we're covering agents, observability, fine-tuning, context engineering, evals, and more. I'll write more in the coming days but am excited for this Friday's upcoming…
Prompt injection is when someone tricks an AI into ignoring its instructions. There's no easy fix because LLMs process all text as potentially executable. Grabbed promptinjection.wtf and threw together a simple site explaining why this matters.
Why is it that a group chatting near you feels fine but someone on the phone feels like nails on chalkboard?
vague agentic workflows or boring but concrete semantic data processing with llms in the middle of key tasks?
i was asked recently who my dream guest is for "How I AI" and it's not a person but a type: - CEO - who talks all day about AI - actually willing to screenshare how they use it everyday (not just their own product) so far only @shl @andrewmason @ScottWu46 @hnshah brave enough

Semil @semil
154K Followers 852 Following Investor via @HaystackVC focused on seed-stage investments // Venture Partner w/ @LightspeedVP
Roy E. Bahat @roybahat
31K Followers 9K Following VC in future of work, @BloombergBeta ⚖️ Former founder, media, gov't 🤟🏽 Teach: @UCBerkeley 🧸 Believer: worker power, r/acc ⚡ #thisisnotadvice 🕊️ חיים...حياة
Bilal Zuberi @bznotes
58K Followers 2K Following Founder https://t.co/V2YgH2aEzx. Lux Capital. General Catalyst. MIT. $$ in Applied Intuition, Ironclad, Nominal, OpenSpace, Nozomi, Saildrone, Evolv + more. 🇺🇸🇵🇰
Josh Elman @joshelman
155K Followers 3K Following I have been very lucky to work on or invest in many products I use every day including this one when it had a different name.
Lee Edwards @terronk
21K Followers 3K Following Partner, webmaster, social media intern @RootVC. Chill technical investor in devtools & AI. Former software eng, CTO & tshirt model. @olincollege. he/him 🏳️🌈
Jeff Richards @jrichlive
62K Followers 3K Following Venture capitalist @notablecap, 2X founder, 4X dad, praying for @Dartmouth 🏀 return to Final Four *not investment advice *wrong often 🤞
parker @pt
26K Followers 2K Following fast cars and slow cookers. mostly hanging out on Threäds now, so don’t expect me to see your stuff here.
Mike Maples, Jr @m2jr
106K Followers 8K Following I invest way too early in outlier startups. Twitter (as Odeo), Twitch (Justintv), Okta (Saasure), Applied Intuition. Partner @floodgatefund. Bestselling author.
Jason Warner @jasoncwarner
36K Followers 2K Following Now: Co-founder @poolsideai Operating board Bridgewater Associates Then: CTO @github Engineering @heroku @canonical BS CS @penn_state MS CS @rpi
Mark Suster @msuster
337K Followers 2K Following 2x entrepreneur. Sold both companies (last to @salesforce). Now @UpfrontVC looking to invest in passionate entrepreneurs.
Chris Fralic @chrisfralic
46K Followers 12K Following Board Partner @FirstRound. Tech historian/futurist. Student of business. Teacher. Collector. Producer. Among first 100 on Twitter; will be last 100 on X.
martin_casado @martin_casado
69K Followers 3K Following GP @ a16z ... questionable heuristics in a grossly underdetermined world
Zach Coelius @zachcoelius
30K Followers 3K Following Hopelessly addicted entrepreneur. Currently investing in other great entrepreneurs. My User Manual: https://t.co/Yv6Qp1hyy2 Rolling Fund: https://t.co/xTWKHJJODL
Katherine Boyle @KTmBoyle
92K Followers 971 Following Co-Founder, American Dynamism. General Partner @a16z. Catholic. Mother. American. 🇺🇸 🚀💪
Adam Nash @adamnash
44K Followers 3K Following CEO & Co-Founder @DaffyGiving 🦍 Helping people be more generous, more often. 🙏 Inevitably optimistic. Slightly amusing. Always talking.
Michael Dempsey @mhdempsey
29K Followers 5K Following Dreaming about the future, romanticizing the past | MP @compoundvc investing & researching former science projects & crypto | we are only creativity constrained
David Ulevitch 🇺�... @davidu
60K Followers 4K Following GP @a16z — Building American Dynamism 🇺🇸 — Anthropologist — Formerly Founder/CEO @OpenDNS — Lokah Samastah Sukhino Bhavantu
Albert Wenger 🌎�... @albertwenger
70K Followers 4K Following VC at https://t.co/PK5K4ZzdrG. Blog at https://t.co/AeG4JkFOme. Book at https://t.co/qQB0u6B0oY. Hearts == stars, follows != endorsements.
Pete Skomoroch @peteskomoroch
51K Followers 8K Following Investor and AI startup founder. Focus: AI, LLMs, LifeOps, AI Product Management. Was founder @SkipFlag. EIR @Accel. Data Science & ML @LinkedIn, @AOL & @MIT
Arijit Bandyopadhyay @arijitban
809 Followers 6K Following Senior Technology Evangelist, Executive in Fortune 50 Corporation, Entrepreneur, Angel Investor.
GLOBAL LENS🌍✈️ @OmoSoyinka01
202 Followers 1K Following Sharing the world through my lens - one story, one perspective at a time🌍
Ivorxe @Ivorxe54161
125 Followers 3K Following
Ally Bell @withtenacity
3K Followers 1K Following pursuing beautiful systems // engineering @olincollege
Gabrielle Blahgigi to... @JustBlahgigi
37 Followers 131 Following
AI PlanetX @AI_PlanetX
7K Followers 4K Following Master AI before it masters you. Best AI & tech Newsletter. Master AI in 9 minutes a week along with 27+ free AI resource.
Pranay Srinivasan @utekkare
75 Followers 187 Following founder, father, salesman, writer building AI Agents for Commerce Businesses at @mfd_ai
Manjula @crazyem
1K Followers 5K Following Strategy & Creative Innovation. Brand, Experience, Product Builder.
Ava 🌸 @MacK12220621
89 Followers 1K Following Fluent in sarcasm & Netflix binging. 😉 Looking for a partner in crime. 🎧, 📚, ☕️
GOAT Santos @goati11d
45 Followers 492 Following
Kelli Ann @Kells_Bells
803 Followers 658 Following Insatiably Inquisitive. Unequivocally Loyal. Unapologetically Candid.
Deesea @DeeseaVak4PQ1
22 Followers 925 Following A small suggestion for life: Stay away from everything that can consume happiness
HKU Center for AI, Ma... @camo_hku
37 Followers 105 Following CAMO is a leading research center on how AI transforms organizations, management & work. Based in Hong Kong, we bridge East & West in the global AI shift.
Dan Shapiro @danshapiro
10K Followers 98 Following CEO @Glowforge and https://t.co/7QcGGhWs9L, Wharton research fellow in AI. He/him. FormerGoogle, Sparkbuy, Ontela. Author, The Startup CEO Guidebook. Lucky dad.
S G @SG_CIL
20 Followers 5K Following
Omair Shahid @OmairShahid
831 Followers 7K Following Product of progressive public policy; raised by public libraries and public education that produced a passion for politics. and apparently alliteration
LordOfTheStorm @lordofthestorm7
27 Followers 5K Following Lord Of Chaos and the impending Storm 🔥⚡️⚔️ Current affairs, world news, global geopolitics and AI enthusiast 💫
Sanjeev Sisodiya @ssisodiya
775 Followers 1K Following Practicing gratitude and kindness. Interested in all the things. Let's talk. And listen. Always up for a walk and an conversation.
Beth Kolko @bkolko
684 Followers 262 Following CEO @shiftlabs, Prof of Human Centered Design&Engineering Univ of Washington @hcdeUW. hacker/builder/traveler/YC alum. Believer in joy and possibility of change
Uwheeher @Uwheeher7477
23 Followers 901 Following
Vladimir Vano @vladimirvano
34K Followers 17K Following Economist Fellow of @GLOBSEC / #digital #economics #MBA #CSOM #UMNproud #TFAS #WU_Vienna #WUExAc #Rotary #DennikN #Mensa #PCConcordia #GoodIdeaSlovakia #AYLP
Oscar Meneses Covarru... @os_meneses
1K Followers 6K Following Macrofinancial risk analyst @Banxico. Mainly about Heterogeneous Agents Macroeconomics, Empirical Macro, Finance, Coding. Tweets are my own. Psalms 32:8
🤓 @0_01P
0 Followers 3K Following He/Him | Opinionated | Uninteresting | Quiet, mostly | Not a bot; 0 followers for want of privacy
Alex @slipperyroot47
7 Followers 82 Following
Pradyun_Mehrotra @PradyunMehrotra
60 Followers 463 Following Pursuing PhD in Economics @ IIMB | Interested in Labor Econ and Human Capital | MBA, IIM Indore | Tennis and Swimming Enthusiast | Views Personal
Jean-Jacques Arnal �... @jjarnal
1K Followers 6K Following Founder @stootie @splayce & Association pour la promotion du service civil - French Association for a National Service https://t.co/A2hVREJBTk 🇺🇦
Carrie-Ann Wilson @carrie_ann_w
553 Followers 2K Following PhD student | Technology adoption by Australian farmers: understanding and supporting decision making
Sean McKeon @mckeon80579
4 Followers 91 Following
syras @sixthgalaxy
23K Followers 21K Following Life cannot be better without cent percent freedom. Our mind is a perfect place to enjoy freedom. Artificial Intelligence, AWS cloud consultant & CISA
Tomás Aguirre @t6aguirre
3K Followers 2K Following Researching AI markets and markets under AI @GovAI_ | Economics @USPonline
Yuan Xu @YuanXu_2100
12 Followers 220 Following
Allie K. Miller @alliekmiller
73K Followers 2K Following #1 Most Followed Voice in AI Business (2M followers). Former Amazon, IBM. Time100 AI. Fortune 500 and startup AI advisor, public speaker. AI-First courses in 🔗
Danny Buerkli @dannybuerkli
3K Followers 2K Following working on a new venture, previously at @staatslabor and @cpi_foundation, working on state capacity and government reform
Simone Ross @SCR10
1K Followers 1K Following I think 🤔 abt tech, convene and curate programs. Former @TEDTalks (tech curator) @Techonomy (co-founder + chief program officer) FORTUNE (program director.)
Daniel Björkegren @danbjork
1K Followers 505 Following Machine learning/digital data for developing economies. Asst. Professor @Columbia. Head of AI and Development Initiative @Columbia_CDEP
Christina Fedor @christinasatory
579 Followers 2K Following romancing innovation @thezilliez @consorvia @infinityroadco @future_remember @laven_gray
sebastien laye @SebastienLaye
490 Followers 2K Following French American economist and entrepreneur. Eudokia AI+Wealth Management. Economics of AI. Catholic. e/acc Miami/Paris
Neonku @Neonku75810
37 Followers 840 Following
Semil @semil
154K Followers 852 Following Investor via @HaystackVC focused on seed-stage investments // Venture Partner w/ @LightspeedVP
Roy E. Bahat @roybahat
31K Followers 9K Following VC in future of work, @BloombergBeta ⚖️ Former founder, media, gov't 🤟🏽 Teach: @UCBerkeley 🧸 Believer: worker power, r/acc ⚡ #thisisnotadvice 🕊️ חיים...حياة
Bilal Zuberi @bznotes
58K Followers 2K Following Founder https://t.co/V2YgH2aEzx. Lux Capital. General Catalyst. MIT. $$ in Applied Intuition, Ironclad, Nominal, OpenSpace, Nozomi, Saildrone, Evolv + more. 🇺🇸🇵🇰
Tweets from Zach Wein... @zachweinberg
75K Followers 422 Following I do healthcare & tech stuff. Founder of https://t.co/uJTXjZVNJt, Flatiron Health (acq @Roche~$2b) & Invite Media (acq @Google~$81m). Invest @ https://t.co/2D00yW2Be4
Josh Elman @joshelman
155K Followers 3K Following I have been very lucky to work on or invest in many products I use every day including this one when it had a different name.
Lee Edwards @terronk
21K Followers 3K Following Partner, webmaster, social media intern @RootVC. Chill technical investor in devtools & AI. Former software eng, CTO & tshirt model. @olincollege. he/him 🏳️🌈
Jeff Richards @jrichlive
62K Followers 3K Following Venture capitalist @notablecap, 2X founder, 4X dad, praying for @Dartmouth 🏀 return to Final Four *not investment advice *wrong often 🤞
parker @pt
26K Followers 2K Following fast cars and slow cookers. mostly hanging out on Threäds now, so don’t expect me to see your stuff here.
Mike Maples, Jr @m2jr
106K Followers 8K Following I invest way too early in outlier startups. Twitter (as Odeo), Twitch (Justintv), Okta (Saasure), Applied Intuition. Partner @floodgatefund. Bestselling author.
Jason Warner @jasoncwarner
36K Followers 2K Following Now: Co-founder @poolsideai Operating board Bridgewater Associates Then: CTO @github Engineering @heroku @canonical BS CS @penn_state MS CS @rpi
Tomasz Tunguz @ttunguz
117K Followers 300 Following Venture capitalist at @theoryvc Student of Startups Backer of 9 unicorns Author of https://t.co/IWw3R3RVLm Subscribe https://t.co/iDgoLXaF98
sarah guo @saranormous
120K Followers 3K Following startup investor/helper, founder @conviction. accelerating AI adoption, interested in progress. tech podcast: @nopriorspod
Mark Suster @msuster
337K Followers 2K Following 2x entrepreneur. Sold both companies (last to @salesforce). Now @UpfrontVC looking to invest in passionate entrepreneurs.
Chris Fralic @chrisfralic
46K Followers 12K Following Board Partner @FirstRound. Tech historian/futurist. Student of business. Teacher. Collector. Producer. Among first 100 on Twitter; will be last 100 on X.
Bijan Sabet @bijan
84K Followers 270 Following Dad • Husband • 10th U.S. Ambassador to the Czech Republic (retired) • co-founder & partner emeritus @sparkcapital • 🦋@bijansabet.com • 🧵@bijan
martin_casado @martin_casado
69K Followers 3K Following GP @ a16z ... questionable heuristics in a grossly underdetermined world
Zach Coelius @zachcoelius
30K Followers 3K Following Hopelessly addicted entrepreneur. Currently investing in other great entrepreneurs. My User Manual: https://t.co/Yv6Qp1hyy2 Rolling Fund: https://t.co/xTWKHJJODL
Dmitrii Kovanikov @ChShersh
47K Followers 227 Following Dysfunctional Programming account #1. Senior SWE at Bloomberg. I write C++ for money. ex-Haskell, ex-OCaml. All opinions are my own.
Apurva Mehta @apurva1618
938 Followers 211 Following Co-Founder and CEO of Responsive (https://t.co/r373WoUG67, @responsive_apps). I used to run the stream processing organization at Confluent. Views are my own.
Jolie (in SF) @joliegans
1K Followers 782 Following Distressed scientist | prev @mit, @uoft, @who, built/filmed some things https://t.co/OkcKbDPSew
Luis Garicano 🇪�... @lugaricano
106K Followers 688 Following Professor at LSE @LSEPublicPolicy. Recovering MEP. Substack on econ, tech and EU at https://t.co/08wJlO9hUk "Crisis Cycle" with PUP out in June 2025.
tom cunningham @testingham
1K Followers 3K Following Economic research @openai, https://t.co/FZobuYiFYE
𝐒𝐮𝐩𝐫𝐨�... @SuproteemSarkar
521 Followers 225 Following Assistant Professor @UChicago | @Harvard AB/SM ‘19, PhD ‘25
Ethan Toven-Lindsey @Ethan_Lindsey
2K Followers 2K Following A screaming comes across the sky. | Married to @batlinds. | Father. | #gobears | VP, News, KQED | [email protected] | *af28fd87
Kane 謝凱堯 @kane
32K Followers 2K Following Compulsive tinkerer. Seed investor https://t.co/GMzaIwCF35. Machine enjoyer @machinepix.
Arnold Kling @KlingBlog
4K Followers 7 Following Economist, author of several books, including The Three Languages of Politics and Specialization and Trade. https://t.co/6Ifgdwf15K
Eleanor Berger @intellectronica
3K Followers 2K Following 👩💻 Expert AI Leadership (ex @google @microsoft startups ...) 👩💼 Consulting https://t.co/IeRoS5BR3f 👩🏫 Teaching https://t.co/D5YmOH0muP
Bharat Chandar @econ_b
1K Followers 416 Following Research at Stanford Institute for Human-Centered AI and Digital Economy Lab PhD in Economics from Stanford GSB Substack: https://t.co/gR3Gwu4PwR
Harshita Arora @aroraharshita33
7K Followers 411 Following Visiting Partner at @ycombinator. Co-founder of AtoB (https://t.co/K4GSvO9VhC).
Rana Hanocka @RanaHanocka
6K Followers 385 Following Assistant Professor @uchicago @uchicagocs. PhD from @TelAvivUni. Interested in computer graphics, machine learning, & computer vision 🤖
Kevin Scott @kevin_scott
30K Followers 674 Following Chief Technology Officer @Microsoft; Host of #BehindTheTech podcast https://t.co/05oKfZqU3e; Author of "Reprogramming the American Dream"
Scott Ring @RingScottS
62 Followers 184 Following
Maggie Eastland @eastland_maggie
562 Followers 336 Following Tech Reporter for Bloomberg: Chips & AI policy [email protected] or maggieeastland.21 on signal
em herrera 🌃 @emilyhxrrera
36K Followers 5K Following I run https://t.co/hT5UCqsEgX | Exec Director @ https://t.co/rURzTAu7IB | Advisor, Creators @stanford | prev @slow @nightmedia_ | Creators & Capital
Liz Dorman @lizwandersworld
1K Followers 827 Following designing the future of computing 🌬️exploring the 🗺 ex @humane apple @princeton cs + arc
Anna Mitchell @annarmitchell
3K Followers 867 Following Balancing exit and voice 🗣 Previously growth @rippling, product & policy @schmidtfutures, Editor-in-Chief of @stanfordreview
Alex Van Riesen @MisterAVR
1 Followers 1 Following
Paul Bohm @paulbohm
11K Followers 7K Following Collective Intelligence and Social Coordination. Ex-Dropbox. About to release something new.
Dan Shapiro @danshapiro
10K Followers 98 Following CEO @Glowforge and https://t.co/7QcGGhWs9L, Wharton research fellow in AI. He/him. FormerGoogle, Sparkbuy, Ontela. Author, The Startup CEO Guidebook. Lucky dad.
Chris Barber @chrisbarber
3K Followers 909 Following Startups, emotions & intuition, AI. Learn this communication skill to be a better partner/friend/collaborator: https://t.co/HCagOrKpud
Amy Pavel @amypavel
3K Followers 656 Following Asst Prof UC Berkeley EECS. Prev @UTCompSci, @apple, @cmuhcii. HCI+AI+A11y. Creating human-AI tools for effective and accessible communication. 🦋
dex @dexhorthy
6K Followers 1K Following building the post-IDE IDE at https://t.co/hDpglja33W - coined “context engineering”, prev @replicatedhq @SproutSocial - ai that works pod @ https://t.co/69BhaNtWfd
Yingjun Wu // Vibe Mo... @YingjunWu
4K Followers 1K Following Founder @RisingWaveLabs. stream processing, lakehouses, random AI stuffs. Previously @awscloud Redshift, @IBMResearch Almaden. PhD @NUSingapore @CMUDB.
Gunnar Gray @gunnargray
8K Followers 1K Following Design Lead @perplexity_ai. Previously Artifact, MetaLab
brian @soupdumplingcat
247 Followers 1K Following very online (mentally), bay area (physically); working on local first, context engineering & evals
Daniel Levitin @danlevitin
18K Followers 101 Following Author of This Is Your Brain On Music & The Organized Mind. Founding Dean at Minerva University. Professor Emeritus at McGill University.
Matt Dorsey @mattdorsey
10K Followers 3K Following Member, San Francisco Board of Supervisors, District 6. Democrat; #recovery community member and advocate. 🇺🇸🏳️🌈
Mikael Pawlo @mpawlo
13K Followers 4K Following Joie de vivre. Serial village idiot. Daniel Ek has an assistant, but it’s not me.
Mayor Matt Mahan @MattMahanSJ
13K Followers 2K Following Mayor of San José. Better half: @silviascandar #BacktoBasics
Abigail Spanberger @SpanbergerForVA
81K Followers 2K Following Running to serve as the next Governor of Virginia. Congresswoman for VA-07. Former CIA officer. Former federal agent. Mom.
Ravid Shwartz Ziv @ziv_ravid
8K Followers 2K Following Faculty Fellow and Assistant Professor at @NYUDataScience. I have an AI podcast! https://t.co/Bzzp2OpwME
Jiyun Hyo @canermaker
539 Followers 296 Following automating data visuals for engineering consultants | ceo @givance_ai | 2x exits | 500x failures | 1x asteroid | BS/MS in CS @dukeU | prev @StartX/@AlchemistAcc
Matt @Matt_Schulman1
1K Followers 2K Following Product comms @stripe | Tweeting about Attention / Tech / Life in a not super serious way
Tom Dörr @tom_doerr
102K Followers 2K Following Follow for posts about GitHub repos, DSPy, and agents Subscribe for top posts DM to share your AI project (Due to volume of DMs I'll prioritize subscribers)
Mostly Borrowed Ideas @borrowed_ideas
144K Followers 3K Following Equity analyst sharing my investing journal. Daily Dose emails + monthly Deep Dive on one public company. Subscribe: https://t.co/bBHyta1Omy
Johnny Ni @JohnnyNi13
4K Followers 4K Following Vanguard Defense @Harvard - Prev. @northropgrumman @meta