Brian Cox: Time Travel is Easy! Kinda
British physics superstar Professor Brian Cox has gone on the record to say that time travel is possible. Unfortunately, there’s a huge caveat to his claim: if you were able to achieve this feat, you’d only be able to travel into the future never to return. Why? Traveling into the past is impossible. Possibly.
The idea of mono-directional time travel is a slap in the face for most science fiction storylines, but fortunately for Marty McFly there’s no risk of accidentally sleeping with his mother from 1955 in this scenario. However, zooming around on hovering skateboards in the future is totally plausible. Maybe.