Very interesting, especially with regards to normalizing the volatility of the industry. Expect to work for 80% of your years is an interesting heuristic.
As a European dev without a six figure salary I'd like to add: It is only a question of time before worker's rights and job safety are undermined here as they are anywhere else in the world.
So fight against that! Unionize! And vote for parties that pledge to not only defend but also further job security.
https://infosec.exchange/@JessTheUnstill/113219153497940517
If your salary is relatively high, it's easy to not recognize that you too will be spit out by the system if you don't get help and if the laws are only written in favor of the rich and powerful.