Summary: There are many theories as to how time travel works. The most likely theory is 'it doesn't,' but that's no fun, so we're taking a look at the various ways you can screw with your own past.
Summary: There are many theories as to how time travel works. The most likely theory is 'it doesn't,' but that's no fun, so we're taking a look at the various ways you can screw with your own past.
