[CMOTB]

Like the scientist said on the TV show Seven Days. There can't be parallel universes or as he said "Thats why they call it a UNI-Verse" :)

[blabs]

The article fails to mention one aspect, which could derail their entire premise. That aspect is "Are you visible to others when you go back in time"?

If you are visible to others when going back in time, then the whole concept is flawed, as simply a reaction to your appearance from an individual could set off an unknown sequence of events.

Hypothetically speaking, "I appear back in time to see a street I lived on, and a driver sees me appear. He slams his brakes, and loses control of his car, which careens into a house where my neighbor lives, killing the daughter of the family, who by the way was my fathers future wife who conceived me."

Elaborate on that!

[R. Scott]

There can't be parallel universes or as he said "Thats why they call it a UNI-Verse" :)

There ain’t but one – and this is it.
Well, unless we get into the higher number dimensions…and the bubbles that pop in and out of our reality…but they're still in this universe while they exist.