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>>mindra+(OP)
It is not a good idea listening to experts tell you what can't be done. Science and technology progresses one funeral at at time. Einstein's ideas were crazy for classical scientists and Heisenberg's for Einstein.

The most important thing is making space access ten to one hundred times cheaper with reusable rockets. Then a lot of the problems in the article will not be problems at all.

E.g ISS was designed and created when access to space was extremely expensive. Solar technology and batteries was extremely bad but also super expensive.

You can not use convention but radiation works incredibly well and you can also use the thermal technology of mobile devices.

The most important thing being cheap is that access to the Space become possible for way more people with creativity. Not just a few people with academic titles but people with practical engineering and scientific mastery (that certainly run circles around them on real projects).

There are so many opportunities to use creativity in space, with possibilities that do not exist on earth. For example you can spin or rotate things super fast and so you could have convention inside the machines that rotate.

>>cladop+na2
Radiation does not work “incredibly well”, especially at the temperature range of interest. Forced convection (what every large terrestrial electronics system uses, from gaming laptops to terrestrial data centers) is orders of magnitude more efficient at pulling heat out of electronics than radiation. Normally electronics generate heat in a very small area relative to the entire package size, and conduction+radiation offers many practical issues to efficiently dissipating that heat to deep space.

Source: many years of practical engineering experience solving this exact problem.