I agree that it is super interesting but... empty space also has ephemeral fragments of antimatter in it. We can’t extract energy from it. There is already gob

I agree that it is super interesting but... empty space also has ephemeral fragments of antimatter in it. We can’t extract energy from it. There is already gobsmacking amounts of energy available to us in the atomic nucleus in the strong force, and we’ve been working for ~70 years to extract it (via fusion).