Cool video explaining the concept of different magnitudes of infinity

This video goes through and explains the concept of different magnitudes of infinity in a way that is easy to follow, something that can generally be really tricky to grasp intuitively.

If you are interested in what I think is the fascinating world of numbers I can absolutely recommend this very easy to follow Teaching Company course on the subject called Zero to Infinity: A history of Numbers. I listened to it a few months ago and found it fascinating.