In the context of crop steering it is taking advantage of the stress responses of the plant to manipulate it to give us a benefit... larger denser buds, more resin and trichomes, high cannabinoid and terp levels etc. Much like UV causes stress that increases THC % when used properly, pruning and supercropping, day and night temp, drought or water stress can also induce benefits if done properly at the right times. It's taking advantage of a plants natural defenses as they have evolved to react to different stress over time. Used alone or in combination and properly at the right times can really make a big difference in a grow.I didn't watch it, looked kinda long, don't understand what dryback, or any of the terms you guys were throwing around, but I got a feeling it has something to do with conserving hydration in some respects.
I haven't even scratched the surface on many of these and a lot of it was/is treated as trade secrets but I would absolutely be gracious for discussion on it