This has nothing to do with MWI. It looks like it’s about mirror matter, which can at a stretch be called a single parallel world that weakly interacts with ours (but “different type of matter that weakly interacts with normal matter” is much more accurate).
OK, Thanks. I didn’t know there were theories that seriously posited other worlds other than MWI, so I just assumed that when I read it. I’m retracting the post. I think the only person who has any desire to see this thread is betterthanwell, but I think you two can continue your conversation via pm.
I have some half-baked questions that probably belong in the Ask a Physicist thread, but I will plop them here for visibility. Please stop me when my reasoning goes belly-up.
Mirror matter is a candidate for dark matter. This stuff is like the normal stuff, only it has it’s “parity bit”* flipped with respect to normal matter, and therefore only interacts with us through the weak interaction. Does mirror matter feel curves in space time made by the normal stuff? Otherwise, how does something exist in the same spatio-temporal coordinates as us, yet respond differently to gravity? Can mirror matter coalesce into massive objects? Could we detect mirror planets passing in front of ordinary stars? Would our space-time be distorted by mirrored black holes in a way we can detect?
*I’m being flippant here. How is parity quantized in physics?
This has nothing to do with MWI. It looks like it’s about mirror matter, which can at a stretch be called a single parallel world that weakly interacts with ours (but “different type of matter that weakly interacts with normal matter” is much more accurate).
OK, Thanks. I didn’t know there were theories that seriously posited other worlds other than MWI, so I just assumed that when I read it. I’m retracting the post. I think the only person who has any desire to see this thread is betterthanwell, but I think you two can continue your conversation via pm.
I have some half-baked questions that probably belong in the Ask a Physicist thread, but I will plop them here for visibility. Please stop me when my reasoning goes belly-up.
Mirror matter is a candidate for dark matter. This stuff is like the normal stuff, only it has it’s “parity bit”* flipped with respect to normal matter, and therefore only interacts with us through the weak interaction. Does mirror matter feel curves in space time made by the normal stuff? Otherwise, how does something exist in the same spatio-temporal coordinates as us, yet respond differently to gravity? Can mirror matter coalesce into massive objects? Could we detect mirror planets passing in front of ordinary stars? Would our space-time be distorted by mirrored black holes in a way we can detect?
*I’m being flippant here. How is parity quantized in physics?