Why doesn't someone raise a VC fund to build another Silicon Valley somewhere else? I personally don't think it involves that much magic. Just build a brand new giant university in a relatively cheap place where you've bought up a ridiculous amount of land. Hire a bunch of Ivy League professors to teach there and establish departments. Market heavily. Around the university, build tons of housing for students. Further…
But there are plenty of existing cheap (relative to SF) cities that have all that sans the tech jobs and somehow they didn't become the new SV.
Pittsburgh is even cheaper and has Carnegie Mellon - not part of the Ivy League, but better than most Ivy League universities for Computer Science.