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people would have to pucker up and breed and eat bugs .

they are one of the most efficient food sources on the planet and some species yield huge harvests with moderate efforts -as long as climate is warm7favourable.

Why take the trouble ? Bugs yield versatile produce that are rich in calories and protein .

I am talking grinding the critters to a pulp or granula that are then added to other foodstuffs as a supplement ,not hideous barbecued exoskeletons simmering in a pulpy sauce of insectoid fluid.

Unless you like them au natural of course.

Some third world countries/aboriginal folk already use bugs as a staple or supplementary food - we just need to wrap our minds around it and open wide .

I have not done real calculations ,but I suspect the kcal output / kcal input ratio is highly favourable to all existing types of livestock raising and possibly some agricultural produce too.

For actual research check out "the landshrimp company " and other sites dedicated to bugs as cuisine