I think you missed the point.
Fusion power is 100%, hands down possible. There is no question in this.
It's all about cost, and my point was, when, not if fusion power is a net positive, will other things be cheaper?
I find it incredible how people on HN, a more technical site, seem to consider 10 years a long time, or even 100. Or that money is "wasted" because the research and work will "vanish", which is beyond absurd. Every penny spent on fusion, and cold fusion comes back to us in many wsys, there is no waste.