Jeff Smith

40.6K posts

Jeff Smith banner
Jeff Smith

Jeff Smith

@jefffocker

Trader. Discipline is orthogonal to alpha.

virginia Katılım Haziran 2011
50 Takip Edilen462 Takipçiler
Sabitlenmiş Tweet
Jeff Smith
Jeff Smith@jefffocker·
$amzn and $btc bag holders in 2026
GIF
English
0
0
6
286
Polymarket
Polymarket@Polymarket·
BREAKING: Iran has closed the Strait of Hormuz.
English
590
564
5.9K
481.4K
The Tennis Letter
The Tennis Letter@TheTennisLetter·
Arthur Fils after beating Lorenzo Musetti in Barcelona “We think of the big serve and the big forehand. But you won the crucial break of serve with the backhand crosscourt battle… how important was that shot today?” Arthur: “Well everyone waits on me for the big serve and the big forehand, as you said. But I know that I have a very good backhand and I can stay 10 hours without missing one backhand 😂. No, no. I was pretty happy with the performance today. It was a good match. Pretty solid from start to finish. Very happy.” 🇫🇷
The Tennis Letter tweet media
English
4
8
452
40.5K
Igor Smirnov
Igor Smirnov@GMIgorSmirnov·
Can you solve this tricky puzzle in 60 sec? White Mates In 2 🤔🤔
Igor Smirnov tweet media
English
33
6
82
12.4K
Chess Feed
Chess Feed@chess_feed·
Everything Was Ready for Checkmate... Until Black Played a Brutal Sacrifice! 🤯 Can you explain why?🤔
Chess Feed tweet media
English
31
7
154
25.6K
N A T U R E
N A T U R E@Globe32048·
U.S. Route 163 leading into Monument Valley ☁️🌵
N A T U R E tweet media
English
448
5.1K
34.2K
928.5K
HCPG
HCPG@HCPG·
$QBTS from support to resistance here in one week
HCPG tweet media
English
2
1
7
1.6K
Jeff Smith
Jeff Smith@jefffocker·
Is it just me of the gpt 5.4 absolutely sucks ? Codex is awesome but gpt seems to have regressed . So disappointed. @sama
English
0
0
0
20
San Cayetano - El Patrón💵💰🥇🏀⚽️🏈
@TennisTV @nunoborges97 Not sure why people expect a handshake and friendly convo after that shit. Yeah it's legal all you want but it's still a punk bitch move..i guess some of u don't understand that bc you live online. If I did that I'd expect the guy not want to talk to me again or try to assault me
English
17
0
53
5.5K
Tennis TV
Tennis TV@TennisTV·
UNDERARM ACE ON MATCH POINT?! 😱 A stroke of genius from @nunoborges97 to reach his biggest career ATP quarter-final in Barcelona! #BCNOpenBS
English
161
230
2.9K
575.3K
Chess Master
Chess Master@xxChessMaster·
Checkmate in 2 moves white to play!
Chess Master tweet media
English
64
11
217
49.9K
Chess Feed
Chess Feed@chess_feed·
White to move, mate in 2!
Chess Feed tweet media
English
46
15
259
53.2K
Jeff Smith
Jeff Smith@jefffocker·
My twitter-chess life feels complete today
Jeff Smith tweet media
English
0
0
0
9
Jeff Smith
Jeff Smith@jefffocker·
@Kasparov63 Happy birthday to the GOAT!. I used to wake up early to analyze your games against the big blue off the newspapers
English
0
0
1
5
Chess Feed
Chess Feed@chess_feed·
White to move! Mate in 1!
Chess Feed tweet media
English
395
113
6.8K
3.6M
José Morgado
José Morgado@josemorgado·
NEW WORLD #1. Jannik Sinner wins the last five games to defeat Carlos Alcaraz 7-6(5), 6-3 and win in Monte-Carlo the biggest clay title of his career. He is back to world number #1. 8th M1000 title (ties Alcaraz), 4th consecutive 27th tour-level title
José Morgado tweet media
English
146
505
4.3K
96.8K
Jeff Smith retweetledi
Andrej Karpathy
Andrej Karpathy@karpathy·
Judging by my tl there is a growing gap in understanding of AI capability. The first issue I think is around recency and tier of use. I think a lot of people tried the free tier of ChatGPT somewhere last year and allowed it to inform their views on AI a little too much. This is a group of reactions laughing at various quirks of the models, hallucinations, etc. Yes I also saw the viral videos of OpenAI's Advanced Voice mode fumbling simple queries like "should I drive or walk to the carwash". The thing is that these free and old/deprecated models don't reflect the capability in the latest round of state of the art agentic models of this year, especially OpenAI Codex and Claude Code. But that brings me to the second issue. Even if people paid $200/month to use the state of the art models, a lot of the capabilities are relatively "peaky" in highly technical areas. Typical queries around search, writing, advice, etc. are *not* the domain that has made the most noticeable and dramatic strides in capability. Partly, this is due to the technical details of reinforcement learning and its use of verifiable rewards. But partly, it's also because these use cases are not sufficiently prioritized by the companies in their hillclimbing because they don't lead to as much $$$ value. The goldmines are elsewhere, and the focus comes along. So that brings me to the second group of people, who *both* 1) pay for and use the state of the art frontier agentic models (OpenAI Codex / Claude Code) and 2) do so professionally in technical domains like programming, math and research. This group of people is subject to the highest amount of "AI Psychosis" because the recent improvements in these domains as of this year have been nothing short of staggering. When you hand a computer terminal to one of these models, you can now watch them melt programming problems that you'd normally expect to take days/weeks of work. It's this second group of people that assigns a much greater gravity to the capabilities, their slope, and various cyber-related repercussions. TLDR the people in these two groups are speaking past each other. It really is simultaneously the case that OpenAI's free and I think slightly orphaned (?) "Advanced Voice Mode" will fumble the dumbest questions in your Instagram's reels and *at the same time*, OpenAI's highest-tier and paid Codex model will go off for 1 hour to coherently restructure an entire code base, or find and exploit vulnerabilities in computer systems. This part really works and has made dramatic strides because 2 properties: 1) these domains offer explicit reward functions that are verifiable meaning they are easily amenable to reinforcement learning training (e.g. unit tests passed yes or no, in contrast to writing, which is much harder to explicitly judge), but also 2) they are a lot more valuable in b2b settings, meaning that the biggest fraction of the team is focused on improving them. So here we are.
staysaasy@staysaasy

The degree to which you are awed by AI is perfectly correlated with how much you use AI to code.

English
1.1K
2.4K
20K
4.1M
Jeff Smith
Jeff Smith@jefffocker·
Damn ..feels like carlitos had tons of chances in this set . Sucks .
English
0
0
0
10
word otaku
word otaku@wordmae·
What’s the word?
word otaku tweet media
English
117
44
1.4K
153.1K