Kinda seems like the extra planet part was shoehorned in at the end. Like the antimatter stuff is interesting but like also seemingly a far fetched guess to take the antimatter stuff and say a planet blew up and that’s why we have this asteroid belt. Maybe a planet got blown up, but maybe not antimatter. Also we think there still is planet(s)? in the Kuiper Belt. And we get asteroids and comets from it too that are seemingly not antimatter. Did it all explode? Seems clunky but I love exoplanet shit.

Kinda seems like the extra planet part was shoehorned in at the end. Like the antimatter stuff is interesting but like also seemingly a far fetched guess. Maybe a planet got blown up, also we think there still is planet(s)? in the Kuiper Belt.