alt Hacker NewsNice work but no offense, but it comes off as you describe. I think you are overall right about needing to switch W sources. You are wrong that it will be used for fusion reactors. That won't happen in the lifetime of anyone alive today. It will get used for armor for weapons and possibly some fission reactors. We are nowhere near an actual breakeven fusion reactor. We are only close to theoretical break-evens which are themselves more than an order of magnitude from actual working powerplants. Ask yourself this, how do you efficiently harness 1,000,000C heat? Even at 900C we can only get about 55% and we have materials which can withstand that temperature for decades. We have nothing physical that can take anywhere near 1,000,000C.
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I'm not smart enough to stake an opinion on the viability of fusion. I pretty much only have high school mechanics and Wikipedia in my toolkit.
I can only ever make material conditional claims about things like this :)
Commonwealth fusion is theoretically pretty close with their high temp superconductors.
Far from a slam dunk, but I don’t think we’re as far from net gain as we were 10 years ago.
> how do you efficiently harness 1,000,000C heat
Very carefully.
> We are nowhere near an actual breakeven fusion reactor.
This isn't true.
I understand why you said it. Always 5 years away from being 5 years away. Years and years and years of nothing and hopecasting. Post-COVID market and startup antics. Data center power antics. Well-educated people pointing out BS and that even the best shots we had were example systems that were designed to be briefly net-positive in the 2030s.
But it's just not true.
Commonwealth Fusion Systems. Book it. 2027. They've hit every milestone, on time, since I started tracking in...2018?