General relativity is harder, but Poincare was somewhat oriented in the right direction. Perhaps AI can discover the final step.
Quantum mechanics is harder. You need like 25 years and a few unintuitive leaps to discover it. I guess it's too hard for AI in 2026, but remember to check again in 2027.
To quote Einstein directly:
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Viereck (Interviewer): How do you account for your discoveries? Through intuition or inspiration?
Einstein: Discussing intuition and his confidence in relativity, noting he was convinced the 1919 eclipse would confirm his hypothesis.
Viereck: Then you trust more to your imagination than to your knowledge?
Einstein: I am enough of the artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.
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I think we need more breakthroughs to build AI that can "draw freely upon imagination" to quote Einstein describing his process.
That is just my guess.
https://en.wikipedia.org/wiki/General_relativity_priority_di...