I'd tweak that heuristic to say that you'll be entered into a lottery regardless, and as such it makes sense to figure out which revolution you're in the midst of.

In the 1960's you probably could have flipped a coin between tech and advertising.

I would also add that it's not easy to tell which revolution you're in the midst of (if any).

VR technology was also thought to be a revolution a decade back and it hasn't really delivered. Or take crypto for instance. Is it a financial revolution that will build a mega-corp like Amazon or Google in the upcoming decades or will it slowly fade away.

Now you tell me.

My conceptual problem was back then I couldn’t imagine people paying a monthly fee to access the Internet.

Apparently Americans have A LOT of disposable income.

If there is one thing I've learned it's never under estimate how frivolous people are with their money.

Its a little deeper than that:

Never underestimate how willing other people are to spend money on things that you consider frivolous.

The trap is to accidentally consider your values as universals. You haven't known obsession until you've hung out with some model railroad guys.