yeah, you could definitely connect valves to this concept. flow with low resistance in one direction, and very high resistance in another. keep the current below that resistance threshold, and it's a rigid gate that can't be breached. the most fascinating example of a valve design, in my opinion, is tesla's fluid valve, which makes the fluid itself push back in one direction, but not in the other. both directions have some resistance, of course. and logically, all physical manifestations of this phenomena are based on this - essentially, computational mathematics. i'm not into that whole simulation theory thing, because i think a simpler explanation is that we are part of a simulation, yes, and all the evidence says that the operator who built it, likes us. and is probably in some way, like us. that is the key distinction between my world view (and many religions promote this model) and the materialist, nihilistic science of modernity.