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by londons_explore 47 days ago
If we directed worldwide LED production all into artificial light for farming, and grew whatever was most calorie-efficient, I think we could theoretically feed every human alive if the sun was blocked out tomorrow.

Obviously that isn't what would happen. The poor would starve whilst the rich still fed cows to eat steak.

1 comments

Did a bit of maths and this isn't true - worldwide LED production would only feed ~1%.