Sabine Hossenfelder on a fusion energy milestone (plus . . .)

2.5 MJ in, 3.15 MJ out . . . not counting the inefficiency of lasers:

Counting 400 MJ to get the 2.5 MJ from the lasers, that is not yet “there” but it is a step.

Here is another recent attempt, based on firing two plasma “donuts” at each other:

The Helion people explain the challenge involved, here.

Let us watch as we inch towards a fusion world. END

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