On 19 Dec 2002 18:25:55 -0800, azedia at dolfina.org (geakazoid)
>Ok, how did the women know that the Wild Yams worked? At some point,
>did they discover that they were not getting pregnant and experiment
>in using them to control their fertility?
Simple inference. Farm wall knowledge, not grand arch
knowledge. It gets you by. But it has no unity. For that you
need imagination to feed theory, rigorous language to support
deduction, and result to validate or dispel. No comparison.