Could you share us a proof of concept or anything that might be a solution for the heat dissipation in space, at scale ?

You see, this is the difference between bullshit and not. I can claim "we'll do timetravel soon !", but unless I share some "things" (whatever they are) that might sustain that affirmation, this is just bullshit

Does it mean that no solution exists ? No. Just that today none are known (as far as I can tell).