Nobody talking about the potential military applications of a hardened processing infrastructure underwater? Once upon a time Russia toyed with the idea of putting ICBM silos at the bottom of lakes. Say you wanted to run a network of hydrophones on the seafloor. You might want to do the data processing in-situ rather than transmit everything back to shore. If I were microsoft I might be interested in those potential…
Was this before or after nuclear submarines were a thing? I think maintenance is much easier with a submersible than something affixed to a lakebed.