Sami

studying cs, quant fi, and applied math while writing c++ for the orion mission as an intern.

[Sami @s_dot_ul]

https://t.co/jEtJqYw1Dy

[Sami @s_dot_ul]

@goodalexander @grok what about compared to claude opus 4.7 and claude sonnet 4.7?

[Sami @s_dot_ul]

@rosmine very interesting. quick question, did you also measure perplexity against the base model and against the human texts? would be curious to see

[Sami @s_dot_ul]

@ThourCS2 even with AI, driver level vulnerabilities are still existent and it’s good to understand these things at a low level: https://t.co/F8LjcnN1JS

[Sami @s_dot_ul]

https://t.co/uTCGhwYmxw

[Sami @s_dot_ul]

@v12sec even battle tested drivers have sharp edges. i wrote a guide on building your own device driver: https://t.co/F8LjcnN1JS

[Sami @s_dot_ul]

https://t.co/uTCGhwYmxw

[Sami @s_dot_ul]

@pkqzy888 @ETenal7 @IEEESSP this type of low level testing catches edge cases before production, i broke down how to make your own device driver in C here: https://t.co/F8LjcnN1JS

[Sami @s_dot_ul]

https://t.co/uTCGhwYmxw

[Sami @s_dot_ul]

@aakashgupta excellent breakdown, i saw a claude skill jane street was using on an open source repo and broke down how it works: https://t.co/bbSMT1cALg

[Sami @s_dot_ul]

https://t.co/AV3epLyFnq

[Sami @s_dot_ul]

@ReesePolitics this is a patient institutional move, a classic example of market taking, see the other quant strategies here:
https://t.co/JLr7gDyOyq

[Sami @s_dot_ul]

https://t.co/jEtJqYw1Dy

[Sami @s_dot_ul]

@aniketapanjwani @grok is gpt 5.5 in codex on xhigh the same as gpt5.5 pro in chatgpt?

[Sami @s_dot_ul]

@BTCtreasuries this is an example of market taking, placing one’s own opinions upon the market. i write about the main strategy buckets funds like rentec and citadel run here: https://t.co/JLr7gDzmnY

[Sami @s_dot_ul]

https://t.co/jEtJqYw1Dy

[Sami @s_dot_ul]

@svpino even using an LLM to make your own kernel, getting the fundamentals down is key, here’s a guide i made: https://t.co/F8LjcnNzzq

[Sami @s_dot_ul]

https://t.co/uTCGhwYmxw

[Sami @s_dot_ul]

@cyber_rekk great explanation on GNU. if anyone wants a deep dive on building your own device driver in C, i have a breakdown here: https://t.co/F8LjcnNzzq

[Sami @s_dot_ul]

https://t.co/uTCGhwYmxw

[Sami @s_dot_ul]

@ClaudeDevs that’s how openai handles it. i broke down the claude skills jane street uses in its OSS workflows:

https://t.co/bbSMT1d8AO

[Sami @s_dot_ul]

https://t.co/AV3epLyFnq

[Sami @s_dot_ul]

@VazeKshitij i actually walked through how to make a simple device driver in C here, let me know your thoughts!

https://t.co/F8LjcnNzzq

[Sami @s_dot_ul]

https://t.co/uTCGhwYmxw

[Sami @s_dot_ul]

https://t.co/uTCGhwYmxw

[Sami @s_dot_ul]

@jyangballin @KLieret have you benchmarked gpt 5.5 yet?

[Sami @s_dot_ul]

@kunchenguid @grok is this all true? what’s the optimal org structure?

[Sami @s_dot_ul]

that may seem trivial once you get it. I thought I was done, but the next question was “how much would you bet if i gave you $1000 and 4:1 odds?” 😭

[Sami @s_dot_ul]

last week, i interviewed for a quant trader position. here’s one of the questions they asked:

[Sami @s_dot_ul]

the technique to
solve this is called Fermi estimation, it’s when you break down an ambiguous quantity by using estimates.

for example, the number of trees on earth must be larger than the number of square miles of land because there is more than one tree per square mile of land, just take the Amazon rainforest for example