The working environment changed. Bit by bit I moved from an environment with gentleman's agreements and so on towards something in which everything was codified, safetyism became rampant, etc.
In the UK over the past few years I went from going into a nice office in a number of beautiful old buildings, getting my stuff done with cameraderie, having lunch together and playing board games, having a laugh in the board room, perhaps a pub visit after work - to sitting alone at home for 8 hours staring at a screen.
So I quit. My productivity - gone. And I fear it's never coming back unless that environment comes back; because I can't effectively function at a "job" with zero human interaction for an entire day, I've had to replace traditional work with other activities.
But is it just me? My friends in retail and other low skill jobs - half the workforce seems to have disappeared so they're all being asked to do far more than is realistically possible. My friends who are in education - the entire job changed, no more giggling and laughing children, you were playing a video game with half the class absent. Perhaps they're back now - but they're dysfunctional because their development was neglected for years. My friends who are in law - the entire job changed, no more travel, no dressing up, sit at home with a screen. My friends who are in medicine - christ, let's not even go there, eh?
I can't speak for those people. But I know that I need a reset, because this "new world" is one I'm just not built for.