They will get rid of all human employees and drive their companies into the ground before they realize ML is supposed to supplement jobs, not take them over completely.
Exactly, replacing jobs with robots will not end well. It's been going on for a long time and is about to hit the steep of the curve. Problem is when machines are doing all the work, there's nobody making money to support the consumer economy a company relies on.
Even for companies that don't rely on the consumer market there's a trickle down. They're producing for companies that do and their customers will dry up when those companies fail.
In order for a wholly machine serviced industrial system to work we would need a whole new economic system. That's not a good thing since we're talking a situation where everyone is basically a ward of the state. We saw how well that worked for the former USSR.
Machines need to help people do their jobs, not replace them. The people running these companies have always been notoriously short sighted and it will be their end, ours too. The draw is too big to resist since labor costs are by far the biggest overhead in running a company.
These modern CEOs need to take a lesson from Henry Ford who's goal was to close the circle, pay people to make the products they will buy. He pretty much invented the middle class. That idea died in industry a long time ago and nobody is the better for it.
I do 76F in the summer for AC and 68F in the winter for heating. Try to use minimal heating and air and still maintain a comfortable range. Can get expensive if working the system too hard. If it wasn't a matter of cost I'd leave it on 72F all the time.
Evaporative coolers are great if you live where you can use one, much cheaper to run and they can work pretty good as long as humidity isn't too high. I had one in a house I lived in before along with a regular AC system. It was a good to have and saved a lot on the electric bill. If it was dry enough out the AC unit was not needed.
Haven't used a heat pump before and don't know much about them. If they work as well and cost less to operate that would be a good option, but I wouldn't use one if it's a downgrade in performance. Rather pay for the comfort.