I have never understood why people are so hot for fusion. Fusion gives you 10^15 energy density, fission gives you 10^12 already. So the difference between fus

I have never understood why people are so hot for fusion. Fusion gives you 10^15 energy density, fission gives you 10^12 already. So the difference between fusion and fission is really not relevant compared to what we have now. Fusion has many of the same potential practical problem as fission and many even worse. Yet fission is here, its the highest low-carbon energy source, it has proven to be able to replace fossil on a MASSIVE scale, see France, US, South Korea, Japan, Switzerland, Sweden and so on. Fusion is the dream in the future that makes it easy for people to dismiss fission. And that is keeping us back. I'm not saying studying fusion is not useful, but a we should put 10x more resources in fission research. The world just does not make sense to me.