[brink]

Here's an educational video on the subject that explains it in a way that everyone can understand. https://www.youtube.com/watch?v=JhHMJCUmq28

[jessriedel]

This video doesn't discuss quantum supremacy, so it does nothing to answer his question.

[aisofteng]

It does however establish the background material. Inability to make the connection is a failure of intellect and imagination.