"I also have a lot of faith in technology to make things like fuel cells cost-effective (duh, otherwise why invest in developing them?)"
Well, the obvious answer is, because when it works someone stands to make billions from it :-) It certainly isn't being funded for 'the good of mankind'.
It's like cold fusion. Will it ever work? It doesn't look likely, yet millions are pumped into that area of research every year. The reason those funds are made available is because it might just work and if someone's going to make a fortune out of it then it might as well be 'me'.
You have to speculate to acculmulate etc...
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