Can you roast soybeans directly in a popcorn popper or microwave? Howdy, I just wanted to ask if it was possible to roast this type 
of soybean directly in a microwave popper contraption or a dedicated popcorn popper without any prior water work, just straight out of the box? And If they'd be edible if I did such a thing?

Edit: 
Honestly what confused me was this video, because the guy just threw them in the frying pan without any preparation or water usage and roasted them.

https://youtu.be/aFt60REeLIk
No, you can't cook dried beans just by roasting them. All this would do is it dry them out even more and that wouldn't make them more edible. Indeed, dried beans are used as baking beans to weigh down pastry during blind baking and they don't pop like popcorn.

All recipes for roasted soybeans require some combination of soaking and/or boiling before they can be roasted.

(Note we're not talking about fresh soybeans here, those are green and succulent.)