The Egyptians built an empire and ran it with a handful of technology... the wheel, irrigation canals, the loom, the calendar, pen & ink, some cutting tools, some simple metallurgy, and the plough, the invention that triggered it all off. And yet look how complex and sophisticated their civilisation was. And how soon it happened, after that first man-made harvest. The Egyptian plough and those of the few other civilisations sprang up around the world at the same time... Gave us control over nature... And at the same time, tied us for good, to the things that we invent so that tomorrow will be better than today. The Egyptians knew that. That's why they had gods. To make sure that their systems didn't fail.

Connections (1979) - 1 - The Trigger Effect