Thanks for the great observations showcasing the elusive productivity increases we're trying to locate in the economy. I couldn't have said it any better.
Productivity is defined as more goods and services produced by the same number (or fewer) of people. So, yes, when Apple's increase in market cap doesn't result in a corresponding increase in employees, we are witnessing increased productivity. Thank you for looking up the statistics.
The great thing about EV cars (Tesla, Lucid, and the re-branded Voltswagon, plus others) is that the products themselves are more productive than an ICE for the simple reason that they have fewer components. Transmissions, radiators, exhaust systems, and of course, no motors. So, no more need to pay for labor to have these parts maintained. Oil changes, transmission flushes (or repairs), radiators, etc. This means a direct savings for those who buy an EV. The savings here can be viewed the same as the macro-economic model upthread. The EV owner can take this reduction in maintenance costs and invest it, spend it elsewhere, or pay off debt.
Some Tesla fans argue that Teslas are safer than ICE, which would be another area of increased productivity. Since they don't have a massive chunk of steel under the hood, traveling at the same speed of the car, they might be right. Dunno.
The real potential for productivity with Tesla would be if they could usher in autonomous driving. They're working on it and it would be a game-changing leap in productivity if it can happen. Then there'd be no need to own a car. No parking to worry about, no maintenance, no insurance, no taxes, no cost of ownership, no pride of ownership (except maybe a classic car as a hobby). Wow! It's crazy just to contemplate.
Thanks for bringing up the stats on Zoom. They're a very productive company, as you point out about 6x more productive than Apple, when expressed in market cap per employee. Wow! That's a lot!!
The productivity increase that Zoom brings to the economy isn't in their own office space, but in their product. In the future, how many business trips won't need to be taken because of Zoom (or their competitors)? This means fewer first class airfares, fewer car rentals, fewer nights in hotels, and fancy restaurant meals, not to mention the time saved by the people doing the travel can be spent either in leisure or at work (more productivity!). Sure, these activities will still occur, but if, say, 10% of them are no longer needed, then this also represents an increase in productivity for the company (and the country). There are massive amounts of money to be saved here by the company with no reduction in employee count at all.
All in all, I guess you could say I see the glass as half full. If someone else sees it as half empty, well, that is their prerogative.