In this post on the BBC, they discuss a new theory of time travel (and I couldn’t help noticing that they managed to link this to Doctor Who – the final episode of the new series airs tomorrow) based on Quantum Mechanics, which says, in essence:
You cannot change any history that you know.
Example: If you know your father is alive today, you cannot go back in time and kill him. However, if you don’t know if he’s alive or not, you might be able to change history.
This leads me to believe that all those slugs who didn’t pay attention during history class will be the vanguard of tomorrow’s time travellers… or worse, time travel’s shakers and movers.
Yet another reason why eduction or logic will not help you understand Quantum Physics.
