Letter: For me, time marches in one direction only (2)

From Alex Bowman, Glasgow, UK

Perhaps at the big bang, time did move backwards and forwards. Our universe moved forwards and the antiverse, with antimatter, moved backwards.

This would explain a flaw in the big bang theory over what happened to the antimatter, which should have appeared in equal amounts to matter.

Antimatter may experience antitime and antigravity, so in our universe it would fall up. However, if we study antimatter in our universe, it may seem to fall, but is actually rising, only in reverse time.