as a matter of fact my career was ended by technology, the business evolved, 99.8% of what I did is now done electronically, I made the choice to retire versus adapting to survive the new realities of my world. Many others in my field have adapted and have prospered.
as for your scenario, it comes down to if you have a strong base in your field you can adapt to whatever happens. someone still needs to build, maintain, interpret and sell the data derived from the AI source.
the fears you've expressed seem very luddite like to me.
Per my previous postings in this thread, I am not opposed to the automation of work and thus not a luddite.
What I do think is that someone who is near or in retirement can no longer use their lifelong career experience to guide a young person who is about to enter the job market.
Sitting behind a wheel is the most common profession in 29 US states.[1] I suspect that especially in this forum, people will be very cautious about suggesting any young person to take up this common profession.
And not only that, but when a large portion of these existing millions of jobs disappear, there is no way that these all people will find new jobs. Rather, they will queue up with the unemployed from closed truck stops and all the other side effects that driverless vehicles will have.
But mass lay-offs will happen at all levels of society.
Since the heydays of year 2000 Goldman-Sachs have reduced their number of traders of US cash equities from 600 to just 2 people. Instead they have 200 software engineers supporting their automated trading[2] - and how long before just a few of these 200 software people can oversee the software?
Lots and lots of way too expensive lawyers and doctors will also need to be let go, supplanted by AI that can process all laws and sentences ever handed out in the blink of an eye - or similarly compare symptoms with all diagnoses ever to have been made in the country.
It is just a matter of time - and not a lot of it.
In the Soviet Union I have seen people whose full time job consisted of sitting in a subway station all day long each with the sole task of checking that a given escalator was running. And that terrible abomination of a country prided itself on having eradicated unemployment...
Work just for the sake of working is not the way to go.
And with way too few people that can be meaningfully employed several problems arise, also for the fewer and fewer richer and richer:
1) If a significant portion of society has no work, whose labor should then be taxed to finance the basic needs of society?
2) If a significant portion of society has no money, who will then buy all the stuff and keep the factories profitable?
3) If a significant portion of society has no money, whom will they rob or kill next out of desperation and anger?
These are not simple questions, but they will have to be answered.
My respect for Elon Musk is heightened by his courage to speak of a Universal Basic Income as a solution to these questions - in the USA of all places.[3]
[1]
Self-driving trucks: what's the future for America's 3.5 million truckers?
[2]
Traders are out, computer engineers are in, as Goldman Sachs goes digital
[3]
Elon Musk thinks universal income is answer to automation taking human jobs