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The current versions of these strike me as a mixture of "kids these days," "fusion might save us" (it won't), and sort of a "startup culture" vibe, with no real weapons implications indicated (which is positive, I guess, since this has no weapons relevance).
I was, incidentally, able to track down the kid from the 1946 story (now not a kid, obviously, and an accomplished person in a non-scientific field of work). He told me that the story led to relentless teasing from his classmates for years. No clue if that would apply today.
In general, the "event X can do this!" (where X is a kid, a college student, a trucker, whatever) stories tend to obscure the gap between these kinds of demonstrations and their more substantive outputs), and in the levels of "help" often made available to the individual X.
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