It does sound to me like other concepts that Google has explored and shelved, like building data centers out of shipping container sized units and building data centers underwater.
[1] https://services.google.com/fh/files/misc/suncatcher_paper.p...
> Cooling would be achieved through a thermal system of heat pipes and radiators while operating at nominal temperatures
Which is kind of similar to writing a paper about building a bridge over the Pacific and saying "The bridge would be strong enough by being built out of steel". Like you can say it, but that doesn't magically make it true.