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How close is nuclear fusion power?

Sabine Hossenfelder · 15 HN recommendations

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Sabine Hossenfelder explains how close nuclear fusion really is to break-even, and why headlines about ITER and lab milestones are misleading. She distinguishes plasma gain (Q plasma) from whole-system gain (Q total) and shows the latter is still far below one.

Why HN recommends it: HN commenters post it under nearly every fusion breakthrough story as the standard reality check on Q-factor hype.

“Mandatory video by Sabine Hossenfelder” Read on HN ↗