I don't think it "assumes" that. I think that's how reality works isn't it? If you hadn't turned on the extra tap compared to your neighbour, you'd have been fine. So the extra tap is the problem.

Saying "brexit might have worked it it wasn't for the rest of reality" just seems like a long way around of saying "brexit didn't and never would have worked" no?

Sorry if I am missing some deeper meaning here?

It's hard for me to explain if you don't see it intuitively, I guess.

Imagine that you take up a gym routine. Ordinarily it would go well. You then break your leg.

If you keep doing squats then you're going to end up in a pretty bad place. You may need to change course.

I'm not saying that I think Brexit was a good or bad idea. I just don't see how it's not intuitively obvious that economic changes aren't just additive. It's a complex system with lots of nonlinearity, mixing, etc.

To me, brexit was a self imposed broken leg. The best that can be said is "technically our squats haven't gotten worse because not being able to do them means they are just null, no like 0s".

If that's your opinion then obviously the entire discussion is null and void :)

True.

But when would you like this holiday from global events while rejigging and would it be English breakfast or earl grey with the breakfast?