Fossil fuels could have been left in the dust 25 years ago. Solar tech could have been cheaper much sooner. Wright’s Law suggests that rather than falling costs spurring production, it’s mass production that causes costs to fall. And therein lies the missed opportunity.

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1. This is very true I think. Germany was widely mocked for being a bunch of wealthy hippies wasting money installing solar in a cloudy northern country in the past. But in a large part it was their decision to do that that spurred large scale manufacturing of PV, which ultimately led to it becoming the cheapest source of electricity in a lot of the world.