The number of loans it is interesting but it’s significance goes further.Compare this with how incautious technical innovation is in drugs and machines, imposing changes after one or two trials.

“As far as biological changes associated with agriculture itself are concerned, we must be doubly cautious. Selection works by variation and inheritance, and only 240 human generations have elapsed since the first adoption of agriculture and perhaps no more than 160 generations since it became widespread.”

Excerpt From

Against the Grain: A Deep History of the Earliest States

James C. Scott