Silicon Valley did fund some "hyperloops", look no further than Musk's other two big ideas (Space X & Tesla). Look for the few VCs that are non conventional thinkers themselves. The ones that discuss the distant future as though it is right around the corner or even happening now.
As an example watch any 10 minutes of this interview with Steve Jurvetson of DFJ. You'll see why he and Musk were a good fit: http://youtu.be/O2tK0Wl2F8w
As an example watch any 10 minutes of this interview with Steve Jurvetson of DFJ. You'll see why he and Musk were a good fit: http://youtu.be/O2tK0Wl2F8w