MIT's Prof. Dennis Whyte explains the ARC/SPARC compact tokamak approach, in which new high-temperature superconducting magnets allow smaller and cheaper fusion reactors. He covers fusion physics, performance trends and the engineering path to net energy.

Why Hacker News readers recommend it: HN points to it as the grounded, approachable explanation of why REBCO magnets changed the outlook for fusion.

“I highly recommend watching Dr. Whyte's talks on YouTube, he discusses the challenges, design, and performance in an approachable way.”

View the original HN discussion

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