If this post contains material that is offensive, inappropriate, illegal, or is a personal attack towards yourself, please report it using the form at the end of this page.

All reported posts will be reviewed by a moderator.

• The post you are reporting:
   
  Hawking also once offered an elegant proof that time travel will never be possible. If it were ever to become possible then we would have met tourists from the future!

Report Post

Your Name

Reason