[Retric]

> hard time parsing the second half of your comment.

I’ll put it as a spherical cow engineering problem. Let’s suppose the temperature is 30C and you want to dissipate 2GW of heat across a 1kmx1km flat plate, what temperature will it get? That’s a relatively straightforward calculation if you don’t need high precision.

However in the real world it wouldn’t have a single equilibrium temperature. 30C at night the heatsink would be one temperature and in the daytime it would be a different temperature due to sunlight.

Evaporative cooling largely sidesteps this issue, but it’s worth keeping in mind why that’s chosen over other seemingly cheaper options.