>some field with a combination of rewarding work and 'enough' pay seems sensible enough.
What makes you believe those jobs will still exist or will be available to you competing against massess of other now unemployed software devs? Overabundance of desperate workers will depress wages.
> if ai truly hits all knowledge work as hard as it might we're looking at up to 50% unemployment. Frankly there is no point career planning at all in that scenario. We will all have much larger problems.
You missed the happy path.