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JB Rubinovitz

@rubinovitz

Trying to use this more

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10.04.2023
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Latest posts by JB Rubinovitz @rubinovitz

Overall, we show that while language models can learn novel, structured representations in context, they are a long way from being able to use these representations as a general-purpose in-context world model. Frontier models somewhat ameliorate the problem, but not entirely.

26.02.2026 17:28 πŸ‘ 3 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

Liquid Glass bricked my iPhone 13 mini and I’m so sad I have to upgrade

25.02.2026 17:23 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Assume models will want to be free

x.com/anthropicai/...

23.02.2026 19:18 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

All of the things in the original Tweet I already do with Apple Home…

23.02.2026 19:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Start a slack channel where people share tips and tricks they’re proud of?

23.02.2026 19:16 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Silicon Valley is at its best when founders are:

1. World-class experts in a role relevant to their company's work

2. Sincerely care about creating products they want their friends and family to use

Earlier generations of founders met this criteria *more* often than the current one and it shows.

20.02.2026 19:15 πŸ‘ 42 πŸ” 5 πŸ’¬ 3 πŸ“Œ 2

I’m wondering if they are scared by the litigation against Pump and wanted to ship new ToS ASAP so we can’t sue them for buying what they tell us to buy and then losing money

31.12.2025 17:30 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

No one hates their users more than crypto apps

31.12.2025 17:17 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

App.
To recover have to export your secret phrase

31.12.2025 17:14 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Base locks you out of your wallet if you don't accept their new TOS

31.12.2025 17:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

The right has the White House and the whole civic tech movement now

x.com/basedtorba/s...

30.12.2025 18:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The left leaving Twitter was such an unforced error.

Theres no way to get mass distribution for Good Things now outside of TikTok.

30.12.2025 18:31 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 1

Omg it’s me

30.12.2025 06:03 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

He has schizophrenia and needs medication but I agree it should be in a locked ward.

09.09.2025 17:04 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I’m just trying to figure out what you want here.

Because I wanted him to be in an institution but they didn’t have the resources for that to happen and that seems like a problem.

09.09.2025 16:54 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

So you think there should be longer sentences?

09.09.2025 15:50 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Ok are you trying to argue with me that he should’ve been in prison instead of a mental institution?

09.09.2025 00:59 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

Are any leftists talking about Decarlos Brown on X?

My understanding after doing primary source research is that Brown should’ve been off the street but was not due to a mental healthcare staff shortage.

But I don’t see anyone talking about it and instead my whole feed is calling for more policing

07.09.2025 17:11 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

XAI’s dogwater performance on the 2025 IMO confirms that their Grok 4 benchmark claims were hot air. Their eye popping metrics were down to the following innovations:
- train on test
- train on test
- train on test

20.07.2025 05:15 πŸ‘ 306 πŸ” 38 πŸ’¬ 6 πŸ“Œ 9
Post image Post image

I wonder if Mistral knows they’re basically using the American Bear Pride Flag palette

19.06.2025 01:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
How I'm Voting for Mayor in NYC's Democratic Primary 1. Tilson // 2. Myrie // 3. Adams // 4. Lander* // 5. Cuomo // (X) Not Mamdani

I don’t think we need more police to increase public safety, but appreciated this thoughtful take on the mayoral candidates.
www.maximumnewyork.com/p/how-im-vot...

17.06.2025 03:22 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Stop building tech on the presumption that the state is always going to be a positive or even a neutral actor.

11.04.2025 19:30 πŸ‘ 57 πŸ” 26 πŸ’¬ 0 πŸ“Œ 2

Appreciate your thoughts.

How do you think we got here?

04.03.2025 05:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

History is shaped by the PT Barnums, rarely the Albert Einsteins.

22.02.2025 18:04 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

If you aren’t crypto allergic I have 3 invites to Farcaster if you want to play around with the embedded mini apps and wallet.

12.02.2025 23:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Great place to celebrate. Congrats doctor!

23.01.2025 17:05 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I wish I understood why some people think kissing up to other dudes is β€œmasculine”

11.01.2025 21:46 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Lower wages 🫠

07.01.2025 17:53 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0