wolfigor
Emperor
I was thinking that the economy would develop brand new industries (good and services) through new technology and science, which is something I don't believe the OP considers. The OP emphasis is on technology streamlining production, displacing labor in the process, and not creating additional capital opportunities. Which basically I call BS on, which is what I meant by "economy growing". Basically, I'm optimistic that new sectors of the economy would form.
There is a clear fact that the rapid technology evolution of the last decades increased enormously the productivity of each single worker in every field of economy, from production to services.
Mechanization, better fertilisers, genetic, etc. allowed one person to make the work previously made by maybe 100 people.
Spoiler :
see this graphic about productivity in former soviet republics and east European states after the fall of USSR that allowed them to get modern processes and technologies.

Similarly technology allowed huge increase in productivity in all production work and into services too.
In the service area one person, thanks to computers and always more powerful software, can do the work previously done by tens of people.
The economy "grows", but it doesn't produce jobs with the same speed.
I agree with you new industries got created, and they created new jobs: but did they created enough jobs to replace all those that went lost?
This is why there are less jobs available for everybody and a lot of people have now skills that are no more needed: a clear picture of the state of things right now with many people without any good chance to get a decent job.
The "old" industries do not need them anymore.
The new industries created by the new technologies do not need them too, they require workers with completely different skills.
These unemployed need a complete re-training to acquire new skills and be able to aim for the jobs.
However they have to compete with both new generations and with people living far away: Globalization of labor is another consequence of technological advances.
In my view we will see more and more endemic high unemployment in the future.
At the same time salaries did not grow with the same speed of productivity: companies pocketed the difference leaving even less money into the hand of consumers.
Money went into financial institutions that lent it to people to fuel consumption... this leads even more to today situation.