You can do this with atom level simulation and growing the brain all the way from DNA, but it needs a lot of compute (> 50 years).

However, and in the end you'd be bored, because you could get rid of all of your human flaws, which is what makes life interesting. It'd be really depressing and boring to be a superintelligent computer.

Yeah exactly. You would never do an atom level simulation, you would distill the model of whatever you think people are.

And then that would live on in a new environment, becoming something entirely different.

Being flawed is the new being sentient.

> you could get rid of all of your human flaws,

I take it you have never written any large applications or simulations.

There's absolutely no basis for the affirmations made in your last paragraph. None at all. And if we think about it, it is very scary.

That's very "draw the rest of the owl"!

Never wish for this. The amount of (emulated, but still real to the emulatee) suffering has no practical limit. Emulation/Uploading is every sadists wet dream. The only way to stay free is to live your life in the real and embrace (and hope for) the permanence of death.