If growing them feeds people efficiently, we'll see it here soon enough.
Potatoes didn't exist outside the Americas until after 1492. Then many cultures viewed them as lowly and not worth eating. But you can feed more people per area than any other food and they grow in more types of land than many other edible plants. Cultures would reject them until a famine struck. Then the ruler would eat them out of necessity. Then everyone would eat them. Now potatoes are in more cuisines of the world than any other food.
If cockroaches are efficient, I would expect a few shocks in some commodity markets to put them on a few cultures' dinner plates, then to spread. Like roaches, if you'll pardon the pun.
If growing them feeds people efficiently, we'll see it here soon enough.
Potatoes didn't exist outside the Americas until after 1492. Then many cultures viewed them as lowly and not worth eating. But you can feed more people per area than any other food and they grow in more types of land than many other edible plants. Cultures would reject them until a famine struck. Then the ruler would eat them out of necessity. Then everyone would eat them. Now potatoes are in more cuisines of the world than any other food.
If cockroaches are efficient, I would expect a few shocks in some commodity markets to put them on a few cultures' dinner plates, then to spread. Like roaches, if you'll pardon the pun.