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Re:Ask HN: Why is news about fusion ignition not a bigger de... by prewett on Wednesday December 14, 2022 @10:48AM (#33985125)
I think it is a great result, but at the risk of sounding negative, I just can't see how this is a big deal. It was touted as the first time we've seen fusion ignition and is therefore a proof-of-concept. But as far as I can tell, what they did was make a tiny fusion bomb. We already know that we can get fusion ignition, namely the actual thermonuclear bomb. I don't see how one is going to scale up miniature bombs into power generation, especially when you have to use X-ray lasers (if I remember correctly) with a 1% efficiency.

It seems to me that the technical achievement is creating a fusion bomb that is small enough to be not destroy anything. What these little bombs are good for is unclear to me. But I would not have imagined blasting droplets of tin to get X-rays to etch microchips, either. Nor would I have thought that one could drive around at 60 mph by means of a bunch of discrete gasoline explosions, either. So who knows!

Re:Ask HN: Why is news about fusion ignition not a bigger de... by noobermin on Wednesday December 14, 2022 @11:37AM (#33985972)
You don't need x-rays (also, they do not use "x-ray lasers" which...i guess you'd mean a free-electron laser...which NIF isn't). You can do direct drive, NIF does not due to it's secondary (some say main) purpose.
Re:Ask HN: Why is news about fusion ignition not a bigger de... by rogereur on Thursday December 15, 2022 @11:47AM (#34002208)
You don't seem to understand fusion