That video looks really interesting, thanks for sharing! I'll have to give it a watch soon. ...After Thanskgiving.
There's been a little bit of talk about it on this thread already, but I'm curious about how you guys all deal with isolating different varieties for seed-saving purposes. Do you have any particular minimum distance you use? What percentage of outcrossing (if any) do you typically see?
I've read everything from "beans don't cross pollinate" (which is clearly false) to "keep at least 50 feet between varieties for seed-saving" (which seems like it would only apply to large-scale seed companies), and I'm curious how you guys have experienced this "in real life" in your smaller-scale home growouts.