> I like fusion, really. I’ve talked to some of luminaries that work in the field, they’re great people. I love the technology and the physics behind it.

> But fusion as a power source is never going to happen. Not because it can’t, because it won’t. Because no matter how hard you try, it’s always going to cost more than the solutions we already have.

https://matter2energy.wordpress.com/2012/10/26/why-fusion-wi...

Yeh current tech is expensive and would likely be uncompetitive. At the very very end of that article is the key to this though:

> I fully support a pure research program for radically different approaches to fusion.

We've got by without them so far and solar is cracking along.

That's not how invention works though. Something has to be technically possible and we have to discover how to do it in a viable way.