This is a common misconception. Advances in neuronal simulation do not at all map to traditional computing. The mere fact of running on a computer does not mean the simulated brain gains features intuitively expected of a computer (like rapid maths, or being able to copy knowledge).

Sure, but I like to dream about developments that I might actually get to see. Full human level AI? Making your brain smarter? 6th senses? I don't see these happening ANY time soon. But a little coprocessor with dedicated functionality seems like an almost-realistic enough possibility to enjoy thinking about.

Yes, baby steps. Reminds of the stories of people attempting to fly with bird-like wings. Eventually somebody came along and figured out the right way to fly and it was not with flapping wings. Same here, making a lot of attempts that may seem stupid or laughable or even impossible but eventually somebody will figure it out.