[tastyfreeze]

> not every person in an advacent civilization knows how to produce advanced technology

That's an understatement. If civilization collapsed today, how many of the things that you have could you make yourself?

[hn_version_0023]

Your comment reminds me of the excellent series "Connections" by James Burke. The opening episode in the series asks that exact question.

https://www.youtube.com/watch?v=XetplHcM7aQ&list=PLf02uWXhaG...