In reply to  Jed Rothwell's message of Fri, 16 Jun 2023 16:40:59 -0400:

Even so, Kathryn McCarthy , director of the U.S. ITER Project at Oak Ridge 
National Laboratory, testified to Congress
just this week that ITER’s “continued project progress shows us that it is 
possible to achieve engineering precision, at
the millimeter-scale, on ship-sized fusion components.”

One wonders what's going to happen to those precision components when liquid 
Helium causes them contract, and
temperatures of 100 million degrees causes them to expand?

Buy electric cars and recharge them from solar panels on your roof.

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