This is a great post. A combination of many of the above can lead to a successful career or business. Proof of value is interesting also from the point of view that value is subjective, like an phone could be worth the price of a house if yours is on fire and you need to call the fire brigade when normally a cellphone that just makes calls is worth 100$ or something.

And even in secondary markets. The price you get for an NFT, a bike on Craigslists is highly dependent on how others determine the value relative to how much they want it and competition on the market.