It just so happens that a short while after I saw this comment, this [1] turned up on my recommendations feed. What would you say are the counterarguments that

It just so happens that a short while after I saw this comment, this [1] turned up on my recommendations feed. What would you say are the counterarguments that lead you to believe fusion is on the horizon? (Ideally in more specific terms than "when a distinguished but elderly scientist", etc.) Just to be clear, I don't personally have a position on this; I don't know enough about the field. But I'm very interested in understanding developments in energy production, as at the end of the day, this is humanity's only real source of leverage. [1] https://www.youtube.com/watch?v=JurplDfPi3U https://www.youtube.com/watch?v=JurplDfPi3U