My question regards mirroring, specifically what you would expect from a universe that was mirrored from the perspective of our own, regarding its interactions with our own. The mirroring works exactly, well like a mirror, so handedness is going to be switched it seems on many things.
The universe in question is identical in all other respects, but is mirrored. I suspect there would be significant changes, but these wouldn't affect the world itself somewhat like a anti-matter universe, but if the two worlds interacted, say through a portal or something it would affect their interactions potentially violently.
Certain things come to mind right away: many organic compounds have a handedness, and as thus you can't consume them (differing handedness is how some fake sugars work), however more importantly I fear having opposite handedness on the subatomic level might mean any interactions between the two worlds would be very violent. I need to know the effects of interactions between "mirrored" universes for a future question, but if any interactions between the universes resulted in some catastrophic effect that would rule out this specific scenario.
Other than the potential for destructive interaction, merely having people not be able to eat the other universes food doesn't bother me, only results which rule out travel between universes bother me. Ultimately I ask this question, because I simply don't know enough to say how opposite handedness (or whatever you expect with mirroring) would affect the interactions between otherwise nearly identical universes. An ideal answer tackles the subatomic aspects, and if the interactions aren't to destructive then it also tackles some other effects at higher levels like chemistry.
Clarification The only difference between this universe and our own is is that it is flipped back to front exactly like a mirror, as thus the only difference effects will occur when you travel between them.