I'm not convinced by your points. Savants are exceptionally uncommon, and there's no evidence most people can learn the skills they have. Many savants are famously bad at every day human skills, so clearly there's a trade-off - at best.
Storing and operating on numbers with arbitrary precision is a completely trivial operation for all but the oldest computers. But the abilities most humans find trivial - exploring an arbitrary environment by body movement (without falling over), throwing and catching things, playing sports, using tools creatively, reproducing and maintaining relationships, communicating using complex natural languages - are huge engineering problems in the digital space, and most aren't anywhere close to being solved definitively.
So let's ask again - how many of these problems can be solved using Turing complete digital systems?
I don't think anyone can honestly say "All of them." Given the state of the art, a more realistic answer is "We just don't know yet."
Are all brains Turing complete?
I'm not convinced by your points. Savants are exceptionally uncommon, and there's no evidence most people can learn the skills they have. Many savants are famously bad at every day human skills, so clearly there's a trade-off - at best.
Storing and operating on numbers with arbitrary precision is a completely trivial operation for all but the oldest computers. But the abilities most humans find trivial - exploring an arbitrary environment by body movement (without falling over), throwing and catching things, playing sports, using tools creatively, reproducing and maintaining relationships, communicating using complex natural languages - are huge engineering problems in the digital space, and most aren't anywhere close to being solved definitively.
So let's ask again - how many of these problems can be solved using Turing complete digital systems?
I don't think anyone can honestly say "All of them." Given the state of the art, a more realistic answer is "We just don't know yet."