> Of course, lower prices don't solve your problems if you're unemployed. Demand, indeed, drops if many people are unemployed, which pushes prices further down, but this time in a way that can lead to a recession.

This is the major risk right now.

I think we'll need to strongly look at UBI and a star trek esque future or, barring that, something more like a star wars esque future..

doesnt this entire premise rely on an even shock to all parts of the labour economy

It will be more like a tsunami. Comes in waves, knocks down one economic later at a time.