Marcus Buffett (@MarcusBuffett) profile picture

Marcus Buffett

@MarcusBuffett

Programming, chess, board sports, fantasy and sci-fi. Working on the next generation of early education!

chessbook.com
Joined September 2012
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  • Following387
  • Followers875
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Photo by Marcus Buffett (@MarcusBuffett)Photo by Marcus Buffett (@MarcusBuffett)Photo by Marcus Buffett (@MarcusBuffett)Photo by Marcus Buffett (@MarcusBuffett)Photo by Marcus Buffett (@MarcusBuffett)Photo by Marcus Buffett (@MarcusBuffett)Photo by Marcus Buffett (@MarcusBuffett)Photo by Marcus Buffett (@MarcusBuffett)Photo by Marcus Buffett (@MarcusBuffett)
This took ~15 minutes to be almost an order of magnitude faster than the most popular chess Javascript library Software dependencies are going to trend toward 0 so fast
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I think I might be bad at monetization Here's some reviews of Chessbook (which is not free)
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Marcus Buffett retweeted
Markov (@MarkovMagnifico) profile picture
Markov
@MarkovMagnificoAug 6
it’s kinda insane that we know how effective spaced repetition is for learning but ~all schools just choose to do nothing with this information
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jacob paris ▲ (@jacobmparis) profile picture
jacob paris ▲
@jacobmparisJul 11
I made a spaced repetition WhatsApp bot with eve - get daily text reminder to train - track mastery on each topic - add new cards by sending photos At 1:20 I show the new Agent Runs dashboard where you get a production chat history log with all reasoning traces and tool calls
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What the hell do you mean, "One typo slipped into the commit message", and how do you typo a Chinese character? I promise Anthropic I'm not coming for your crown with this 20 million param chess prediction model. You don't have to sabotage my "research" with this nerfed Fable
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Jeff Bezos (@JeffBezos) profile picture
Jeff Bezos
@JeffBezosMay 20
Yes, the United States has the most progressive tax system in the world. The top 1% pay 40% of taxes, the bottom 50% pay 3% of taxes. We can make it even more progressive by zeroing out taxes on the bottom half. It’s a small amount of the total tax revenue but very meaningful to people in this group.
Shay Boloor (@StockSavvyShay) profile pictureShay Boloor
@StockSavvyShayMay 20
Jeff Bezos said the bottom half of Americans should pay zero federal income tax. He cited a nurse in Queens making ~$75K and paying ~$12K in taxes saying “we shouldn’t be asking this nurse in Queens to send money to Washington.”
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Primer (@Primer) profile picture
Primer
@PrimerApr 29
A real-time, transparent view into your child's academic progress. Available now for every Primer family.
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I've never been more thoroughly owned than when I ordered a shake in the company Doordash order, it exploded over the other items in-transit, and @delk called it a highly asymmetric downside play
Ryan Delk (@delk) profile pictureRyan Delk
@delkMar 2
8yo [to 5yo precariously balancing her cup on her plate]: "That's literally asymmetric downside. Like dad talks about."
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Chessreads (@chessreads) profile picture
Chessreads@chessreadsFeb 27
Best bed-read chess books: chessreads.com/review/alekhi… chessreads.com/review/capabl… chessreads.com/review/bobby-… chessreads.com/review/the-li… chessreads.com/review/the-ri… chessreads.com/review/chess-… @ilan_ruby @SJPressInc @capakhine #chess #chesspunks #chessreads
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I can't get Opus to understand a single basic instruction right now Sonnet 5 confirmed for tomorrow
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Think about this a lot
Nate Solon (@natesolon) profile pictureNate Solon
@natesolon13 Nov 2025
Don't worry, you're not bad at chess. You're actually bad at everything. Chess is just one of the only things with a good rating system.
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Marcus Buffett retweeted
wael attieh (@AttiehWael) profile picture
wael attieh
@AttiehWael9 Dec 2025
If you're a #chess adult improver (below 2300 online) and have never worked with me, I have a great offer for you which extends till the end of December! DM me to know more about the discount and let's train hard and get that rating moving up! #chesspunks #chesscoach
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I'll never financially recover from this
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Decades of Clean Code obsession has poisoned AI training When you say "simplify this", they hear "move this stuff around to other places" Guaranteed net-positive lines of code via any AI "simplification"
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95% of X ads engagement is fake, because advertising posts react on tap start instead of tap end, so they accidentally activate all the time while trying to scroll your feed. This is both terrible for users (me), and advertisers (also me) @nikitabier
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Every day we stray further from god
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GraphQL is pretty cool until you start making 3,000 database queries in one request
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IroncladDev (@IroncladDev) profile pictureIroncladDev
@IroncladDev23 Sep 2025
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Seb ⚛️ ThisWeekInReact.com (@sebastienlorber) profile pictureSeb ⚛️ ThisWeekInReact.com
@sebastienlorber3 Sep 2025
👀 React Native 1.0 is finally on the horizon Announced at React Universe Conf, they will share the plan to reach 1.0 soon! RN recently: - improved its release process (6x/year) - stabilized and clarified its public APIS - introduced workflows to catch breaking changes
Image from Seb ⚛️ ThisWeekInReact.com (@sebastienlorber)
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