I didn't like the rampant tracking and the fact that Google and Facebook effectively ran some of the largest information gathering networks on earth (and that's a very charitable way of describing it).

Any time you're in a situation where the price is 'too low'—and I put that in quotes because it might not feel low to you, sometimes things are very expensive, but there are more people who'd like to buy the thing than they have the ability to serve—that's when a hidden market will crop up.

The industry is so big that it's difficult to give a general read of its state. It's a bit like saying 'what's the state of the global banking industry?' You could do a broad-brush and say that the banking industry is full of corrupt individuals intent on defrauding the world, or you could say that in some markets banking is doing very well- and in others it's doing terribly.

The arrival fallacy is this notion, this psychological trick we play on ourselves, where we repeatedly convince ourselves that happiness, contentment, and fulfilment lie just beyond whatever mountaintop we've set as our ultimate goal. You hit that target you've built up as the finish line, and sure, you get a fleeting rush of dopamine-fuelled euphoria—only to find yourself quickly eyeing a new, distant summit.

Many of us think that you should only believe things that are true, not just things that rally your coalition, sect, or tribe. That belief is by no means universal, but it is a gift of the enlightenment.