Multiverse Interactions
Concerning the idea of a multiverse, I read somewhere that each different universe would operate by its own unique physical laws due to differing qualities.
My questions are do we know whether different universes are able to physically interact with one another, and if so, what might the effect be of different combinations of physical laws?

Patrick Slater (u5018801)

It's important to remember that there are lots of different multiverse theories. In some of them, the "separate universes" do interact. You can hear more about this in the recording of lecture 2.

Not all the multiverse theories have different physical laws in the various universes. In the theories that do have that, the answer is the same: according to some of the theories, universes interact, and according to others, they don't.