Sergey Alexashenko

Making things with AI

Previously co-founded Rostra, worked at Substack, wrote a book on dendritic computation.

[Sergey Alexashenko @SAlexashenko]

@arakharazian @NikSingh19 Oh thanks for the clarification!

[Sergey Alexashenko @SAlexashenko]

@NikSingh19 @arakharazian I wonder if part of it is that Ramp captures more card spend than ACH spend and larger customers pay via ACH

[Sergey Alexashenko @SAlexashenko]

@arakharazian From the S-1, subscriptions in general are 20% of their revenue, most of those are businesses, so it can't be that.

If AI spend is power law distributed and this data disproportionately misses the right tail, idk how much we can learn here tbh.

[Sergey Alexashenko @SAlexashenko]

@agnostoxxx I told you it was a Zero Sum Game

[Sergey Alexashenko @SAlexashenko]

@louisducdanjou just saying

[Sergey Alexashenko @SAlexashenko]

you, oxford-educated political analyst:

The protests in France are not really about any one policy. They reflect a deeper discontent with an establishment that many feel no longer listens.

me, fourth-turning-pilled designer: i have flags for every eventuality

[Sergey Alexashenko @SAlexashenko]

It's too late. I have already depicted you as the agitated beheaded dude from the Benin Empire flag, and I, the stoic beheader

[Sergey Alexashenko @SAlexashenko]

@joshpxyne @coframe Congrats!

[Sergey Alexashenko @SAlexashenko]

@octal Also https://t.co/Z9SZ1GaHKd

[Sergey Alexashenko @SAlexashenko]

@typesfast @JoshuaBarzon Lack of will

[Sergey Alexashenko @SAlexashenko]

@negligible_cap What do you expect Ant 2027 growth to be? What is their forward sales multiple?

[Sergey Alexashenko @SAlexashenko]

@SixSigmaCapital the "news" were a complete nothingburger

[Sergey Alexashenko @SAlexashenko]

@masayoshisson Unclear! If compute is limited, prices go up

[Sergey Alexashenko @SAlexashenko]

@tamarawinter I like it in principle but the clothes feel like they have no relationship to the animation? Like I could see Iris van Herpen dresses in the Little Mermaid, but not feeling this one

[Sergey Alexashenko @SAlexashenko]

@insane_analyst @jukan05 Set for life

[Sergey Alexashenko @SAlexashenko]

How many neurons do you need to activate in a human brain to turn the human evil? 100? 1000?

[lyra @_lyraaaa_]

if you have a qwen3.5 4b around, please try steering neurons L14 N8949 +1 and L13 N7956 -1
now you have evil qwen

recipe: dose × median(‖resid‖ leaving layer L, tokens 1:) / ‖W_down[:, n]‖` at the down_proj at every input

[Sergey Alexashenko @SAlexashenko]

@negligible_cap They never said that. Gavin made it up based on an anon tweet. If you think about it for a minute - was never going to happen - they had just raised $5B from Nvidia, takes time to train the model and release it.

[Sergey Alexashenko @SAlexashenko]

@devonzuegel Hell yeah 🤘

[Sergey Alexashenko @SAlexashenko]

If some equity analysts with access to Anthropic models without the biofilter can move the frontier on scorpion antivenoms, imagine how many cures Anthropic is keeping from us with that biofilter.

[Anthropic @AnthropicAI]

New on our Science Blog: designing protein binders against scorpion neurotoxins.

Scorpions sting about 1.2m people every year, and antivenoms are often costly or in short supply. Claude has made an early step toward finding new treatments.

https://t.co/l6LgdEqM7I