I don't disagree with this statement, fusion researchers do care about energy loss when they're evaluating fusion reactor feasibility. They talk more about neut

I don't disagree with this statement, fusion researchers do care about energy loss when they're evaluating fusion reactor feasibility. They talk more about neutron loss, bremsstrahlung radiation and synchrotron radiation instead of blackbody radiation. A paper on this: https://arxiv.org/pdf/2104.06251 https://arxiv.org/pdf/2104.06251 So I did some searching, and found this stack exchange asking this question: https://physics.stackexchange.com/questions/415028/how-do-fusion-reactors-deal-with-blackbody-radiation https://physics.stackexchange.com/questions/415028/how-do-fu... . They argued that because fusion reactor plasma is optically thin, it doesn't radiate following blackbody radiation law. This textbook also say that: https://www.cambridge.org/core/books/abs/physics-of-plasmas/plasma-radiation/978D783820B7C6CCF55F40582B9E2816 https://www.cambridge.org/core/books/abs/physics-of-plasmas/... I tried to search more about plasma energy losses, and it becomes extremely complicated with insane amount of equations. One thing that I can get is that you can't model fusion reactor plasmas as a blackbody radiator because plasma is that complicated. If plasma is simpler then we should either have fusion already or we have given up on fusion research a long time ago