Sure, let’s just gloss over the cost of heating - which relies heavily on fossil fuels or smog-producing fuels, or both.

Datacentre thermal management (especially for AI)isn’t even in the same ballpark as cooling for homes. One produces pretty charts for management, the other keeps people alive.

I tried for a while to use two 16:9 vertically. Like you say, vertical makes a lot of sense and it works great. But web devs seem universally to assume that if it’s a tall narrow screen, to show the mobile version.