Alex McColgan

Please leave your ideas in the comments below on the nature of time, and what it might actually be instead.

I hope to explore more strange concepts like this in a new series called The Unseen World, where I want to explore the shape of reality around us.

While it's normally invisible to us, the shape and dimensions of the universe can explain why things are the way they are, and I'm excited to explore it with you if you are interested in it.

Let me know.

Have you ever wondered if it is possible to see the future?

Humans throughout time have certainly hoped so.

But for most of us, that's something in the realms of mystics and fortune tellers.

The idea that there might be some way to actually glimpse it is usually considered the stuff of superstition.

But that perspective might be wrong.

Before you worry, this is an Astrum video.

I originally intended this video to be the last one in my Unified Theory of Everything series,

But as I was preparing the best way to demonstrate how strings could explain the principles of special relativity, I took another, closer look.

And I realised that there were some mind-bending implications of relativity that contradict our perception of what really exists in the now, which we had to tackle first.

As it turns out, you might be seeing parts of the future already.

And yes, it's time for me to explain with another diagram.

I'm Alex McColgan and you're watching Astrum.

And to understand everything, it's time to scrutinize time, space and relativity.

We don't tend to think of relativity in the way I'm about to show you, but it's vital that we improve our intuitive understanding of this topic, or no attempt to explain why special relativity really happens will make sense.

Besides, who doesn't like having their mind blown by cosmic weirdness from time to time?

When it comes to special relativity, you might have felt like you understood the gist of it,