That looks exactly like what's happening, even down to "In fact, with both eyes open, they may not be able to tell which eye is set for distance and which is se

That looks exactly like what's happening, even down to "In fact, with both eyes open, they may not be able to tell which eye is set for distance and which is set for near." Quick edit to add I didn't expect that to happen as was pleasantly surprised when I noticed it. For me it happens immediately and automatically, it just works.