> As conduction and convection to the environment are not available in space, this means the data center will require radiators capable of radiatively dissipating gigawatts of thermal load. [...] This component represents the most significant technical challenge required to realize hyperscale space data centers.
and
> A 5 GW data center would require a solar array with dimensions of approximately 4 km by 4 km
> [...]
> A 1m x 1m black plate kept at 20°C can radiate about 850 watts to deep space, which is roughly three times the electricity generated per square meter by solar panels. As a result, these radiators need to be about one-third the size of the solar arrays, depending on the radiator configuration.
Seriously, what more of an acknowledgement do you want? The paper covers everything you are complaining about in pretty plain and frank language.