This is true and parity isn't conserved in all cases.In that last Spacetime video, when he explains why there must be equally.much matter and antimatter, that's not true if he adds a dimension.
It's cool and amazing how much a black hole can really be.[youtube]yWO-cvGETRQ[/youtube]
Wow, sure is- it looks like sunshine in a bottleDoctorOfSpace, that's a really beautiful experiment.