While in rural Japan, I noticed a lot of tiny combine rice harvesters in tiny rice paddies, as opposed to mega-scale American agriculture: https://en.wikipedia.

While in rural Japan, I noticed a lot of tiny combine rice harvesters in tiny rice paddies, as opposed to mega-scale American agriculture: https://en.wikipedia.org/wiki/Rice#/media/File:Rice-combine-harvester,_Katori-city,_Japan.jpg https://en.wikipedia.org/wiki/Rice#/media/File:Rice-combine-... Perhaps these would be a model for smaller autonomous combines.