On: Major nuclear fusion milestone reached as ‘ignition’ triggered in a lab

[Ericson2314]

Supply doesn't create it's own demand.

This is plain social failing you're describing. You ask whether it will happen to fusion, I would argue it has already been happening to both for quite some time.

Just as starter motors are needed to stat ICEs, so new sorts of power generation start as unprofitable, and end as essential.