The biggest limits on machine learning are how many examples it takes to get good at something. Right now, this is at a literally evolutionary pace: our bodies/genomes have barely adapted to the invention of controlled fire, thousands of generations ago, yet if it took thousands of examples for our brains to learn then we'd sill be unable to control fire.
Computers only partially make up for being slow in the "by number of examples needed" sense by being fast in the "wall clock" sense: If a biological brain took as many examples to learn a thing as machine learning takes, the creature would starve before figuring out how to eat; yet transistors operate faster than synapses by the same magnitude to which a jogger outpaces continental drift.
The "only partially" is why, despite around a trillion miles of driving experience across the fleet, you still can't buy a Tesla without a steering wheel (and even the Cybercab that's supposed to be without a steering wheel is often photographed with one).
Modality change might expand their usefulness, but I don't think it changes the basic parameters of their operation.
Learning to swim might let you see a coral reef, but it won't turn you into one.
Trained mostly on their own data, not ours. The mix changed, from 10% to 90% synthetic data. RL training is now the largest part of the process. The AI work is searching, and I don't think we can claim this process to be credited to us anymore. The origin point is, but not the journey.