For some of the pulsed fusion concepts like helion and zap, they're either very close to technical viability or to finding an unknown (at least by outsiders) de

For some of the pulsed fusion concepts like helion and zap, they're either very close to technical viability or to finding an unknown (at least by outsiders) deal breaker. I'm much more sceptical on the economic viability. If it's past the edge of possibility with known materials now, there's no reason to think your reactor would suddenly last decades because you made a series kf incremental improvements from needing 10x the energy in as out to sorta do it once to 0.95x