Humm, besides flight simulation? In my job I am a R&D Engineer in the field of flight simulation, so it might not be MSFS things I am working on, but it is still quite similar. So it is hard to imagine what I would do without working on a flight simulation.
I would probably spend more time on my racing bicycle .
Spent 14 years in the RAF and use FS to recreate planes and airfields I had the best times with. Then followed 30 years with IBM as a software designer/developer and just can't stop programming. My favourite language is Delphi, though I have used most other "languages", most of which are awful in comparison, like the scrappy C and derivatives and Visual Basic - YUK. It's a pity there isn't a real operating system for the PC. Also have electronics as a hobby, R/C Flying, Painting, Writing Novels, Mecanno and I own a 50-acre farm and breed alpacas. Well into MIDI, and wrote a music compiler for it. So not a lot really! BTW, had FS since Bruce Artwick's version 1. Pity he didn't keep with it!
Flew my Cherokee for 16 years and sold it, so I rent a plane once in while and fly with a friend. Play with my 8th grandson with Railworks and Train simulator....but I really love to make "solid wood"(Mahogany) model airplanes...grow Hot Peppers in the garden from all over the world and pickle them!!! and enjoy going to Italy and France for vacations........
Imam Romeo--RO-1: 1/72 Scale
B-18, BOLO( Much needed in FSX...great AAF plane.)
SM-81 "Pipistrello"(Bat)..won first price in Show in Milano, Italy back in 2004...Yes!!! it was the Only entry in the scratchbuilt category!!!!
If im not in front of my PC i could be eating/sleeping/teasing my dog/out with my RC planes/Researching my latest solid fuel for my model rockets which is a bit potent to the point that they exceed the speed of sound and several thousand feet.....