The last fairly technical career to get surprisingly and fully automated in the way this post displays concern about - trading.
I spent a lot of time with traders in early '00's and then '10's when the automation was going full tilt.
Common feedback I heard from these highly paid, highly technical, highly professional traders in a niche indusry running the world in its way was:
- How complex the job was
- How high a quality bar there was to do it
- How current algos never could do it and neither could future ones
- How there'd always be edge for humans
Today, the exchange floors are closed, SWEs run trading firms, traders if they are around steer algos, work in specific markets such as bonds, and now bonds are getting automated. LLMs can pass CFA III, the great non-MBA job moat. The trader job isn't gone, but it has capital-C Changed and it happened quickly.
And lastly - LLMs don't have to be "great," they just have to be "good enough."
See if you can match the above confidence from pre-automation traders with the comments displayed in this thread. You should plan for it aggressively, I certainly do.
Edit - Advice: the job will change, the job might change in that you steer LLMs, so become the best at LLM steering. Trading still goes on, and the huge, crushing firms in the space all automated early and at various points in the settlement chain.