Eh. Space is just a place that's annoying to ship to. (With the one key advantage of having line-of-sight to arbitrary deployed IoT devices.)

"Underwater", meanwhile, is more of a mode of operation / design for data centers, with the goal of that simplifying (and decreasing costs for) cooling.

An underwater data center doesn't imply that the data center is actually off-shore to any large degree. I'd imagine they'd look more like undersea-cable landing points, built "into" a beach.

Underwater data centers make a great deal of sense - close to customers (low latency), fast deployments (decision to power on in 90 days), and, of course, cooling efficiencies. I expect them to actually happen if Phase 2 goes well.

Then again, I'm a bit biased - I worked on both Phase 1 and 2.

Did you know that eric schmidt funds a deep sea drone submersible project out of alameda to map and sensor the oceans... its funded under his and his wifes foundation, but basically its a secret project to map the oceans. They want to be first to own all that data