stupid idea of the day

"Goofy" is a rather imprecise criticism.

It went bankrupt because the price of polysilicon dropped 89% between

Solar cells clearly don't have to be flat, and anybody who thinks that this was ever any kind of rule has to be nuts.

I don't think that anybody has ever made much money out of solar cells which weren't flat, but that's just practical experience rather than any kind of rule.

"Nuts" is a rather imprecise criticism.

John Larkin Highland Tech Glen Canyon Design Center Lunatic Fringe Electronics

I was criticising the specific proposition that there is any kind of rule that solar cells have to be flat, with a counter-example, so it was still a much more specific criticism than the one you posted.