Having 1000+ petabytes is not impossible with our level of technology. It is somewhat nitpicky to focus rather on the physical absurdity of house-sized computers.
Run Watson, select the Watsons that can solve problems better.
1000 petabytes of what? RAM? How do you know that's enough to do what you want anyway? My point at any rate is that we can't grab a billion dollars and make some computer that is "fast enough to 'evolve an AI'" just by throwing money at the problem - universities, companies and governments are spending money right now on supercomputers, and they still have limitations due to underlying technical issues like cooling and inter-processor communication (as the other commenters pointed out).
Watson is a big complex program, not some small DNA-like s
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