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Richard Sutton, University of Alberta professor, posts 26-word distillation of bitter lesson in AI

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Richard Sutton posted a 26-word summary of the bitter lesson urging researchers to favor scalable search and learning methods over embedded human knowledge. Aviv Tamar quote-tweeted the post and called the source material probably the best position paper in machine learning. The exchange focused on how computation-driven techniques have historically outperformed approaches that rely on domain-specific human expertise.

Original post

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

9:58 AM · May 18, 2026 View on X

@agarwl_ discarding humand data (be it in LLM or in non-trivial "classic" RL env) is just complete nonsense. Even if Rich says it. But I'm not sure he's actually saying this here.

Guess he should use more than 26 words, but then it wouldn't sound Ilya-style mysterious anymore :)

Rishabh AgarwalRishabh Agarwal@agarwl_

Perplexed by this take: Sure, let's not mainly do supervise learning on human knowledge, but it makes sense to build off it instead of the *let's do it from scratch*. People cite AlphaGo vs AlphaGo Zero as a quintessential example of how using human-generating data is suboptimal but it was *imitating* it that was suboptimal. What if we learned from that data assuming it was suboptimal in the first place (so not supervised learning but RL like mindset of using that data)

6:32 PM · May 18, 2026 · 7K Views
8:15 PM · May 18, 2026 · 101 Views

@RichardSSutton I think it is worth studying human knowledge, particularly understanding the structure of its abstractions, as they can provide guidance about the kinds of things humans learn and machines do not (yet). I wouldn't call that "distraction".

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
5:59 PM · May 18, 2026 · 2.8K Views

The bitter lesson in 26 words:

Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views

Also abstractions & knowledge curation.

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
7:08 PM · May 18, 2026 · 689 Views

i wonder whether this needs an update.

current methods, such as they are, leverage massive amounts of human knowledge as their primary fuel. they would be lost without it.

and they even build some knowledge into their system prompts.

and lately they build knowledge into their harnesses, usually by over 50 tools that have been carefully crafted with human knowledge.

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
7:13 PM · May 18, 2026 · 2.6K Views

Perplexed by this take: Sure, let's not mainly do supervise learning on human knowledge, but it makes sense to build off it instead of the *let's do it from scratch*.

People cite AlphaGo vs AlphaGo Zero as a quintessential example of how using human-generating data is suboptimal but it was *imitating* it that was suboptimal.

What if we learned from that data assuming it was suboptimal in the first place (so not supervised learning but RL like mindset of using that data)

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
6:32 PM · May 18, 2026 · 7K Views

bitter and sad

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
7:06 PM · May 18, 2026 · 1.4K Views

GOD GAVE US THE UNIVERSE, THE ORACLE. WE MUST MINE IT

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
6:57 PM · May 18, 2026 · 7.4K Views

Natural language is human-created representation of the world.

Is the ultimate form of the bitter lesson to bypass natural language entirely and learn a new representation from the world itself?

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
7:23 PM · May 18, 2026 · 170 Views

@jiaxinwen22 how do you explain point 3 given that debate is empirically hard, LLM judge systematically fails to make reliable more subjective judgements (which is basically what taste is), etc? why doesn't this just result in the slop problems we see now when people try and scale SWE TTC?

Jiaxin WenJiaxin Wen@jiaxinwen22

I might be one of the few people who is most bearish on human research taste and bullish on automated research: - "AIs can only do hyperparameter search" is mainly a skill issue with bad automated research setups. - human taste is overrated, e.g. frontier labs / neolabs are doing pretty simlar things. - human taste might win in a low-compute world, but not a high-compute world we're entering.

6:43 PM · May 18, 2026 · 6.5K Views
7:17 PM · May 18, 2026 · 147 Views

@jiaxinwen22 median human taste is not great. the tails are pretty good, but for the purposes of "will AI replace a profession" the media is not hard to beat.

Jiaxin WenJiaxin Wen@jiaxinwen22

I might be one of the few people who is most bearish on human research taste and bullish on automated research: - "AIs can only do hyperparameter search" is mainly a skill issue with bad automated research setups. - human taste is overrated, e.g. frontier labs / neolabs are doing pretty simlar things. - human taste might win in a low-compute world, but not a high-compute world we're entering.

6:43 PM · May 18, 2026 · 6.5K Views
6:51 PM · May 18, 2026 · 549 Views

However, I hope humans keep doing our own research, with *strong* tastes and priors. Not all research is about outcomes. Sometimes you just want to solve/understand a problem in a way that feels like yours.

Jiaxin WenJiaxin Wen@jiaxinwen22

I might be one of the few people who is most bearish on human research taste and bullish on automated research: - "AIs can only do hyperparameter search" is mainly a skill issue with bad automated research setups. - human taste is overrated, e.g. frontier labs / neolabs are doing pretty simlar things. - human taste might win in a low-compute world, but not a high-compute world we're entering.

6:43 PM · May 18, 2026 · 6.5K Views
6:50 PM · May 18, 2026 · 794 Views

I might be one of the few people who is most bearish on human research taste and bullish on automated research: - "AIs can only do hyperparameter search" is mainly a skill issue with bad automated research setups. - human taste is overrated, e.g. frontier labs / neolabs are doing pretty simlar things. - human taste might win in a low-compute world, but not a high-compute world we're entering.

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
6:43 PM · May 18, 2026 · 6.5K Views

@menhguin If the job of top human experts is just to write a few high-level directions and ask AIs to solve, I’d still call it automated research.

Minh Nhat Nguyen @ AIE SG 🇸🇬Minh Nhat Nguyen @ AIE SG 🇸🇬@menhguin

@jiaxinwen22 median human taste is not great. the tails are pretty good, but for the purposes of "will AI replace a profession" the media is not hard to beat.

6:51 PM · May 18, 2026 · 549 Views
6:53 PM · May 18, 2026 · 265 Views

Probably the best position paper in ML, now fits in a tweet

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
5:39 PM · May 18, 2026 · 1K Views

@agarwl_ the key issue seems to be “we’re operating inside of a bad box, here’s the good box” people like to agree on the second part, but few internalize why “human knowledge” is so attractive and why “how humans learn” is another humanization

Rishabh AgarwalRishabh Agarwal@agarwl_

Perplexed by this take: Sure, let's not mainly do supervise learning on human knowledge, but it makes sense to build off it instead of the *let's do it from scratch*. People cite AlphaGo vs AlphaGo Zero as a quintessential example of how using human-generating data is suboptimal but it was *imitating* it that was suboptimal. What if we learned from that data assuming it was suboptimal in the first place (so not supervised learning but RL like mindset of using that data)

6:32 PM · May 18, 2026 · 7K Views
7:31 PM · May 18, 2026 · 166 Views

@RichardSSutton The center of mass of AI history is like six month ago, so I'd say it was mostly about LLMs and learning from humans

Richard SuttonRichard Sutton@RichardSSutton

The bitter lesson in 26 words: Don’t be distracted by human knowledge, as AI has been historically. Instead focus on methods for creating knowledge that scale with computation, like search and learning.

4:58 PM · May 18, 2026 · 119.2K Views
6:33 PM · May 18, 2026 · 249 Views
Richard Sutton, University of Alberta professor, posts 26-word distillation of bitter lesson in AI · Digg