I think cyclically, things will almost certainly improve. China will take the breaks off and the rising tide will lift all boats. I'm not disputing that. What I'm disputing is that things will structurally improve for the UK. You can't point to previous recessions (70's, 80's, 90's) and say well it got better for us then, it'll happen again. The world was a very very different place. The internet/mobiles didn't exist or were in their infancy, which hugely limited remote working/ international outsourcing, for a start. We didn't have a minimum wage. House prices were far lower vs wages. All those things are big big structural problems for the UK in terms of generating thru-cycle growth and investment. Looking outside the UK, for most of our previous recessions, China was a Communist peasant economy with limited contact with the outside world, Russia was still Communist, most of Eastern Europe was Communist for the 70's and 80's.
To massively oversimplify, the rest of the world is getting it's shit together, and we need to start taking it seriously, and not just take the piss out of them for being mathmo geeks.
Since the 1970's, the west has gone down the service sector route, but how many marketing managers does the world really need? The next two decades are going to be the age of hard goods/technological innovation. The geeks shall inherit the earth, first one to split the atom gets a prize etc. Kind of worrying then, that no-one wants to do maths, physics or engineering anymore in the UK.