Physics suggests that the future is already set in stone

Our intuition tells us that the future can be changed, but Einstein's theory of relativity suggests that there is no real difference between the future and the past

The future, present and past may not be as different as we think, says science writer and astrophysicist Adam Becker. He explains this mind-bending idea to BBC Earth's Michael Marshall and Melissa Hogenboom, with help from the animators at Pomona Pictures.

Join over six million BBC Earth fans by liking us on Facebook, or follow us on Twitter and Instagram.

If you liked this story, sign up for the weekly bbc.com features newsletter called "If You Only Read 6 Things This Week". A handpicked selection of stories from BBC Future, Earth, Culture, Capital, Travel and Autos, delivered to your inbox every Friday.