As with many things in life, size matters in a data center.
Liquid Immersion Cooling shrinks a data center to a fraction of the size of an air-cooled counterpart. Here's a picture of me, standing next to an 8 kW immersion-cooled data center. This data center is completely self-contained and sealed. It can easily be installed on a cell tower, at the bottom of the ocean, or buried at every street intersection in the US for real 5G edge connectivity.
Now, here's a picture of a 12 kW air-cooled data center. It takes up an entire building. (note that this isn't even the whole thing - this demo doesn't even include the huge air-to-air heat exchanger that sits on top of the building!)
Where are you going to bury that? Can you imagine one of these huge things at every street corner?