[dasmoth]

Writing novels has always been a primarily-solo activity. I don't see demand for those dropping off drastically.

The guy who re-plumbled my house was working there alone pretty much all the time. That seems to be a common way of working in many trades, and plumbers don't seem desperate for work.

A fair number of bits of heavily-used software started out as one person's project (many of the successful ones do eventually morph into community projects, but titles like "benevolant dictator for life" show that community doesn't necessarily mean a flat "team" setup). Lots of programming languages fall in this category. Sublime Text. Indy games (and, not so very long ago, the majority of games). Building software as a solo endeavour does seem to be somewhat out of fashion right now, but that doesn't necessarily mean it can't work.