What makes cooling easier in space? Isn’t it harder due to the lack of atmosphere?

Just need radiators, no fans, no piping, no ac compressors, no moving parts.

How? There is no heat dissipation without an atmosphere. I mean, you have dissipation via radiation but that’s very slow

Not that slow if the temperature is high enough. Power radiated is proportional to T^4

I don't want to run my cpus at optimal radiator temperatures... 1000s of degrees is not ideal.

Not on earth at least!

But, but—convection!