Coal and gas are still way bigger than oil or nukes in our grid, but my point is really just that anexponentialcurve can catch up with a linear one in a surprising way. 14% doubling every few years means we could be only a decade away from 100% clean energy.
The conclusion was the same for drug discovery after the mid-19980s: anexponential decay curve with a slope indicating we were discovering approximately 1 fewer new drugs per year.