How can science explain ghosts crossing the metaphysical boundary into the realm of the living?

Question

How can science explain ghosts crossing the metaphysical boundary into the realm of the living?

Answer 1

Science doesn't explain it - only pseudoscience.

Ghosts don't exist.

Answer 2

Come up with some proof that those things exist or can happen, and we'll figure out how to explain it.  But until it's actually occurred outside of someone's head, science isn't to waste it's time on it.

Answer 3

By saying it doesn't happen. Because it doesn't.

Answer 4

According the to Theory of Relativity, the divide between the boundaries of life and death are only skin deep!

Answer 5

Google up "parallel universe" and you can find a lot of interesting readings.. Also, the BBC is a very good source covering this subject. If you don't want to read, the BBC has videos online that you can watch. They talk a lot about other dimensions being crossed with our dimension... Have fun researching!

Answer 6

Its not true