In the end, the NIF fusion accomplishment might be called a stunt. Stunts explore what we can do (often after an insane amount of preparation, practice, and failure), rather than what’s practical. Stunts hide the pains and present an appearance of ease and grace, but it’s a show.
The “more energy out than laser energy in” equation masks several fundamental problems. NIF’s doped glass lasers have an efficiency of about 0.5 percent, meaning that they would have sucked in roughly 400 megajoules of energy from the grid in order to produce the 2.1 megajoules of light energy…
To be fair the hype machine was from the press not the scientists
Let’s pause to say: well done! Honestly. No sarcasm. What they did was ridiculously hard, and it finally worked after more than a decade of trying. They actually produced a significant number of fusion events! There’s no faking that, and I’d like to see you try. So let’s be clear that I’m not knocking the accomplishment in itself. My major beef is how we interpret the implications for society.
Stunts also draw attention to stuff. Its yet to be seen if its a net positive but it did help me get up to speed on the current state of fusion technology.
What ? It was not really. Here’s a physicist discussing why.
https://dothemath.ucsd.edu/2023/08/fusion-foolery/
To be fair the hype machine was from the press not the scientists
Stunts also draw attention to stuff. Its yet to be seen if its a net positive but it did help me get up to speed on the current state of fusion technology.