Historically, this has been true.
(I actually collect manufacturing machinery, specifically the automated kind. My examples go back to the Civil War era.)
But prior automation efforts were only to perform repetitive tasks. Increased productivity caused market growth, & the workers who originally performed the tasks often then ran the machines which replaced them. Market saturation limits this kind of growth.
We're glimpsing a future wherein robots can do them all at a lower cost.
Simulated understanding augmented with vision, flexible tool usage & locomotion can replace human understanding for many tasks.....
- Food cooking & serving - Example:
https://www.washingtonpost.com/busi...f284ea-3f6f-11e5-8d45-d815146f81fa_story.html
- Personal care - Example:
https://www.good.is/articles/robots-elder-care-pepper-exoskeletons-japan
- Janitorial services - We've already seen Roomba. George Jetson's Rosie isn't that far away.
- Crop harvesting - Example:
http://www.wsj.com/articles/robots-step-into-new-planting-harvesting-roles-1429781404
- Sex work - Example:
http://live.huffingtonpost.com/r/se...ooner-than-you-think/560c199399ec6d3aff0001fb
An almond farmer I met last year is automating much of his operation because even immigrant labor has become relatively expensive.
It's reaching the point where only the owners of the business (his family) provide all the labor. And this labor is primarily management,
machine design, & miscellaneous business tasks. Moreover, they're achieving all this without even using any AI....just 19th century
level of automation.
In prior industrial revolution evolution, workers who did one eliminated task could simply move on to another non-automated role. Robots will end this cycle. We've long heard how terrible it is that employers exploit the poor & the desperate. But how much worse will it be when no one wants them for any purpose other than consuming?