[jhellan]

This youtube made it click for me what is actually going on:

Git for ages 4 and up - https://www.youtube.com/watch?v=1ffBJ4sVUb4

[cassianoleal]

This is it. I was scanning the comments to see if anyone had already posted. This talk is so simple but so effective at explaining the foundations of Git that I always tell everyone to watch it.