>You just use a switch with 2 outputs: for on, and off position. Triggering 2 at the same time is impossible. You've pretty much just described a standard ever

>You just use a switch with 2 outputs: for on, and off position. Triggering 2 at the same time is impossible. You've pretty much just described a standard everyday bog standard switch. It's either over the threshold resistance for triggering, or it isn't. Nothing you've suggested here excludes a switch that changes state by bouncing between the two states 50 times per physical press when you sample at MHz speed, as most switches do.