[mikeash]

I think another major difference is that in most planes, you can feel when the other guy is screwing around with the controls because they're connected, so you can yell at him to stop doing whatever he's doing.

It seems to me that it would be worthwhile to fake this in a pure fly-by-wire environment. The added cost and weight of a force-feedback system on the control sticks should be minimal compared to the aircraft as a whole.

[groby_b]

Wouldn't be surprised if that's one of the outcomes of this - you'll still have the ability to override the other stick, but you'll know you're overriding.