How can humans be made redundant for jobs like cooks, lawyers, masseuses, engineers, artists, teachers, doctors, police, janitors - you could almost take your pick. Sure, there might be parts of some of these jobs that could possibly be automated, but anything requiring human interaction, decision making, etc. is probably never going to be trusted completely to machinery.
Okay, I don't mean that ALL jobs in ALL categories will be able to be automated, it means that
many jobs in
each category will be able to be assisted by automation, allowing less people to achieve more. For instance, instead of 10 teachers, it could be that just 2, assisted with modern teaching methods, will be able to achieve the same workload. There will still be a human "in the loop".
Cooks? yes. Not all of them, but by being assisted, many jobs in kitchens/restaurants will be automated (it's already happening)
Teachers? yes. MOOCs are the future, like it or not.
Doctors will be increasingly assisted. They are already working on making deep learning AI interpret X-rays with more accuracy than humans. Arguably healthcare will take more time than other trades.
Police? Again there will still be police officers, but for instance you could have half the force, by relegating patrolling to UAV (drones) and automated cars. That's a massive decrease in jobs.
Army? Look at what DARPA is doing
now. Robots and droneships. And that's what they make public, they don't show what's classified.
Janitors? Cleaning robots + smart surveillance systems. Again, not ALL janitors, but where 10 worked, it will be 3. It doesn't mean humanoid robots, it could be for instance that instead of having a few guys cleaning, lawn mowing, etc, you'll get one guy assisting glorified roomba robots and having a lawn mowing roomba come every other week.
"Artists" is too wide a field, but oddly, by their nature, it'll be one of the most resilient jobs, challenging the expression "starving artist".
Being practical, if a 5% increase in unemployment is already a catastrophe in any economy, imagine what AI + automation will do. The industrial revolution made machines stronger than humans and relegated us to intellectual jobs. When AI gets better than us at each task, what will we do?
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They were saying that 20 years ago as well.
They were off time-wise, but it's happening. "Physical" jobs will still be there, but many jobs will be doable by human assisted software