The thing about automation that smoothbrains like Bob don't understand is, there are a lot of tasks that are really easy for humans to do, but machines still fail at them constantly.
Let's set aside movement and coordination for a moment and talk about something else that remains complicated for computers: vision. Humans are capable of a wide variety of visual tasks completely intuitively, going far beyond just looking at a thing and knowing what it is. We can enter a darkened room that we've been in before, automatically call up from memory what the room's layout looked like, and accurately navigate through it with little issue (assuming that something didn't change since the last time we entered, like a toy being left on the floor). We can look at a scene and instantly pick out important data, adapting to new circumstances in real time, like staying within the lines on a road and avoiding other vehicles. Our eyes operate in a wide variety of conditions, and we can pick out the same material or object in different light levels easily. There's just a ridiculous amount of things that our eyes can do.
Computers, meanwhile, struggle with these basic tasks. Advancements are made, to be sure, but there's still a lot of work to be done. It takes time for a robot to build a mental map, and it still fails frequently, so many times they're just programmed with the room's layout. Self-driving cars are improving, but they can still fail catastrophically when they interpret their data incorrectly, sometimes with fatal results. A camera can mess up if placed in a different setting and give a computer incorrect readings, causing it to make the wrong decisions. It doesn't matter how much power you pack into a computer or how good your sensors are; at the end of the day, they're simply nowhere near where they need to be to replace humans in most work. And if the computer can't see as well as a person, how are they going to be able to replace one?
This and other "easy for humans, hard for machines" tasks are why you continue to see automation predominantly in very repetitive industrial applications, like spot welders on assembly lines. Anything that's rigidly controlled with little to no variance, all you have to do is just program a specific set of motions and turn the line on. We're years away from robots being able to replace humans for more complex tasks, probably decades, and not for lack of trying.
In a nutshell, for all of Bobby's "tick-tock"ing blue collar workers whenever he sees a cool robot video from Boston Dynamics or elsewhere, his wet dreams of the Mayo Ghouls being forever put out of work by their machine overlords will never come true in his lifetime. He'll stew in rage that he's not living in his jetpack future until the day he finally succumbs to the betus, heart failure, liver failure, or any number of other diseases he's doing nothing to avoid. And truly, I'm glad; if there were anyone who deserves not to see their dreams come true, it's Moviebob.
So keep shaking those impotent fists, Bob. We'll be here to mock you every single time.
