Comment by ACCount36

There are some major hints that this is indeed the case.

I've seen a simple ARC-AGI test that took the open set, and doubled every image in it. Every pixel became a 2x2 block of pixels.

If LLMs were bottlenecked solely by reasoning or logic capabilities, this wouldn't change their performance all that much, because the solution doesn't change all that much.

Instead, the performance dropped sharply - which hints that perception is the bottleneck.