It's wild to think about how short human history is. For example, the iron age started approximately 1200BC, which means that if you are 32 years old you have been alive for 1% of the time humans have used iron. If you are 54 years old then you have lived through 1% of horses being domesticated, the wheel being used for transport, written language and living in towns. 🤯

@gundersen

There is such a huge difference between the vertical and horizontal, which makes facts difficult to grasp
7 billion people? Obviously there's very little horizontal connection between most of them.

A thousand years? That's maybe 60 to 70 generations, probably fewer in most cases. Really quite close.

@regordane @gundersen
Then there is the connection between the vertical and horizontal when you visualize as a broad family tree