Right, so there's your answer to my question above. You'd draw the line at 'daylight' between the players. So we're going to be pausing it and looking at whether it's 1mm of daylight, or not. If it's not, the goal stands, and if it's 1mm, the goal is ruled out. Presumably the daylight has to be between each player's torso. Sometimes there will be 1mm of daylight between the bodies, but the defenders leg will be stretched towards the goal, and may even be ahead of the attacker, meaning that although there is daylight between the players, the striker isn't offside anyway. Or maybe he is by 1mm. I really can't see what you've gained by this change.
So we'll be looking at the trailing leg of the striker, and seeing if it overlaps the stretched out front leg of the defender by 1mm. Decisions will be as tight as they are now, but it will give a decent advantage to strikers. The problem with this is that it's really changing the offside law. The current system means even a little offside is offside, but at least it's the same law we've always had, just enforced more accurately. Changing it as you suggest would be strikers don't have to run off the shoulders of the defender, they can actually be ahead of them. If it goes that way I'll be fine with it, but I still don't see the advantage over what we have this season (as I say, it's still going to be mm decisions on whether the feet overlap). Murray would certainly be pleased, but the change would come too late for him.
That is the crux of it for me. Wherever the line is drawn, there will be close calls that will feel unfair. I know some people are accusing me of loving VAR, in truth I'm currently indifferent and am waiting for it bed in and everyone get used to it, but I'm not getting worked up over tight offside decisions because of this point here. Wherever the line is drawn there will be people complaining that it's too tight, there needs to be more leeway.
Maybe there won't be another decision this tight, and all these discussion with seem weird and doomsayer-y. Maybe there'll be a couple every week and either people will accept them (when opposition goals get cancelled) or the law will get reviewed. Beyond abandoning the law, though, or introducing inconsistency by adding subjectivity with Linos/Refs/VARs using "common sense" and making seemingly identical situation have different outcomes depending on who officiates. Leading to more criticisms and bemoaning the standard of refereeing.