Agricultural experiments play a prominent role in the history of statistics [1]. Yes, everything varies, so they do trials using different squares of land in th

Agricultural experiments play a prominent role in the history of statistics [1]. Yes, everything varies, so they do trials using different squares of land in the same field. So I think it's a little much to say you can't do A/B tests, but it's a good point that they have to be pilot studies, not testing things "in production" on people's farms. [1] https://en.wikipedia.org/wiki/The_Design_of_Experiments https://en.wikipedia.org/wiki/The_Design_of_Experiments