I'm talking more about ASI than AGI. But even with AGI i think it will be possible. hard but possible. Insects and bacterium replicate like crazy. especially if we design them to. We can release them into specific habitats and let them multiply. won't be instantaneous, but i think it would be doable to some extent.

maybe not for the whole world population at first, but we will build up to it eventually.

regardless, i still assume a lot of people are going to starve to death. thats a given.