No, this is an idealized substance, doesn’t exist irl. Heat would definitely kill fusion reactor magnets. That’s why they’re so hard to build, plasma of a mil

No, this is an idealized substance, doesn’t exist irl. Heat would definitely kill fusion reactor magnets. That’s why they’re so hard to build, plasma of a million degrees has to sit only a meters away from superconducting magnets which have to stay cryogenically cooled to near absolute zero.