/AI7h ago

Mechanize co-founder Matthew Barnett argues recursive self-improvement is overrated, but creator roon claims software optimization offers 1,000x efficiency gains

Barnett says slowing down AI offers minimal safety benefits.

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Matthew Barnett@MatthewJBar#1356inAI

@tszzl I don't think it's a good development. I continue to think that RSI is an overrated risk vector due to data and compute bottlenecks, and that slowing down AI would accomplish little at enormous cost.

roon@tszzl

now on the eve of RSI it seems everyone is more mutual conditional pause agreement pilled than they used to be and that seems like a good development

7:58 PM · Jun 7, 2026 · 7K Views
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Users rejected the claim that RSI is an overrated AI risk due to bottlenecks, arguing instead for major remaining efficiency gains in deep learning research.

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roon@tszzl

@MatthewJBar I think you’re wrong and there’s 1,000x efficiency gains leftover in deep learning research that could lead to much smarter faster more agentic models given the same inputs

Matthew Barnett@MatthewJBar

@tszzl I don't think it's a good development. I continue to think that RSI is an overrated risk vector due to data and compute bottlenecks, and that slowing down AI would accomplish little at enormous cost.

7hViews 8.8KLikes 226Bookmarks 13
roon@tszzl

what ML researchers do is improve compute efficiency and data efficiency. if you believe we’ve already covered most of the ground, then you’ve got little to fear. if you think we aren’t close to the “Landauer limit” (using this entirely metaphorically) of model training, then RSI can change things dramatically

Ege Erdil@EgeErdil2

@tszzl @MatthewJBar that's such a vague claim

6hViews 1.6KLikes 48Bookmarks 2
Ege Erdil@EgeErdil2

@tszzl @MatthewJBar in a world where r&d progress in AI is itself compute-bottlenecked, it can simultaneously be true that:

1. we're far from the "landauer limit" of efficiently using compute and data during training, inference, etc

2. we can't close the gap to it by scaling cognitive effort alone

Ege Erdil@EgeErdil2

@tszzl @MatthewJBar matthew is just saying RSI is overrated as a *risk vector*, as in, he thinks it's not going to happen because there are other inputs that go into improving AI systems that will become bottlenecks with abundant researcher effort

your claim doesn't respond to that at all

6hViews 815Likes 13Bookmarks 1
Ege Erdil@EgeErdil2

@tszzl @MatthewJBar i agree RSI *can* change things dramatically. that's again an extremely weak claim that:

1. presupposes "RSI" exists 2. qualifies the "change things dramatically" prediction with "can" (which makes it impossible to disagree with, especially conditional on 1)

roon@tszzl

what ML researchers do is improve compute efficiency and data efficiency. if you believe we’ve already covered most of the ground, then you’ve got little to fear. if you think we aren’t close to the “Landauer limit” (using this entirely metaphorically) of model training, then RSI can change things dramatically

6hViews 848Likes 8Bookmarks 2
Ege Erdil@EgeErdil2

@tszzl @MatthewJBar that's such a vague claim

roon@tszzl

@MatthewJBar I think you’re wrong and there’s 1,000x efficiency gains leftover in deep learning research that could lead to much smarter faster more agentic models given the same inputs

6hViews 1.4KLikes 15Bookmarks 0
Ege Erdil@EgeErdil2

@tszzl @MatthewJBar matthew is just saying RSI is overrated as a *risk vector*, as in, he thinks it's not going to happen because there are other inputs that go into improving AI systems that will become bottlenecks with abundant researcher effort

your claim doesn't respond to that at all

Ege Erdil@EgeErdil2

@tszzl @MatthewJBar i agree RSI *can* change things dramatically. that's again an extremely weak claim that:

1. presupposes "RSI" exists 2. qualifies the "change things dramatically" prediction with "can" (which makes it impossible to disagree with, especially conditional on 1)

6hViews 748Likes 14Bookmarks 0
roon@tszzl

@EgeErdil2 @MatthewJBar you’re right im just giving you squishy intuitions but these are my intuitions

Ege Erdil@EgeErdil2

@tszzl @MatthewJBar in a world where r&d progress in AI is itself compute-bottlenecked, it can simultaneously be true that:

1. we're far from the "landauer limit" of efficiently using compute and data during training, inference, etc

2. we can't close the gap to it by scaling cognitive effort alone

5hViews 551Likes 8Bookmarks 0
penguin@itspublu

@tszzl @MatthewJBar wouldn’t that just risk letting other countries lead?

7hViews 167Likes 3
Thŏth@thoth_iv

@tszzl @MatthewJBar I'm interested to know how we a priori know this.

The scaling laws seem pretty dominant, don't they?

7hViews 130Likes 1
SithLordW@SithLordW22

@tszzl @MatthewJBar Yah someone with an m5 and 16GB is using codex to build a scratch model comparable to codex itself in someways but completely different in the solution space it produces - this is rsi though

7hViews 126Likes 1
xlr8harder@xlr8harder

@tszzl @DicksonPau @MatthewJBar The question on my mind is if scale and capability are truly tightly coupled, or if this is a partial consequence of current inefficiency.

roon@tszzl

@MatthewJBar I think you’re wrong and there’s 1,000x efficiency gains leftover in deep learning research that could lead to much smarter faster more agentic models given the same inputs

4hViews 276Likes 0Bookmarks 0
libpol@libpol_org

@MatthewJBar @tszzl I very much understand your point, but are you saying you think even within twenty years from now it's unlikely there'll be a major acceleration of capabilities growth due to RSI?

7hViews 79Likes 1
Loathe@loatheofbread6

@MatthewJBar @tszzl It’s more of a cost-benefit question.

Late a decade or two on curing cancer vs. reducing large safety event by XX%.

Reasonable trade off given our civilization’s overall age.

7hViews 75