In the USA, there was a person who was traveling around removing bolts. The person showed up in our local area. A couple of members of the climbing community had a conversation with the local police. The police had a concern about him creating a potentially dangerous situation of people trying a climb and expecting to find bolts only to find the bolts missing. The police went out of their way to arrest him. They got him on probation violation and had him extradited to his home state. The climbing community replaced all the removed bolts, and people went back to enjoying the rock climbing.
The local climbing community chose to take care of this quietly without media or internet drama.
I got a the highest paid job I could find with the skills I have that I enjoyed "well-enough". I spent less than I earned. I made mostly low risk investments (with a handful of high risk investments). I consistently did those behaviors for many decades. I also got lucky that nothing bad happened to me.
The Sierra Nevada region has a similar history of using the "checkerboard" pattern to promote railroad building. Organizations like the Trust for Public Land and the Truckee Donner Land Trust that are systematically acquiring many of these checkerboard inholdings to preserved them from future development and open them to low-impact public recreation.
That is interesting because of the Halo effect. There is a cognitive bias that if a person is right in one area, they will be right in another unrelated area.
I try to temper my tendency to believe the Halo effect with Warren Buffett's notion of the Circle of Competence; there is often a very narrow domain where any person can be significantly knowledgeable.
You are correct that those concepts are interrelated. It works well not to get caught up in precise definitions. Instead, reflect on your current level and take the next best step.
The Lindy effect can be a useful heuristic. Something invented 30 months probably has less long-term value something that was invented 10 years ago and is being used.
The Real Book is an excellent resource for what it is. However since it is the primary book of jazz, it can have too much of an influence. The Real Book has a limited number of songs and entire subgenres of jazz are not represented. The structure of the songs is relatively narrow. Songs are rarely added.
I use the "launch ramp" technique. Ask a series of prompts (instead of a single prompt with a long answer). Explain the prompts that will get progressively more complex, aka the ramp will gradually get steeper and get very steep later. I can stop the interview quickly if the candidate can not find simple mistakes and how to remedy them. I can also jump ahead to complex issues to engage highly qualified candidates.
I was working with a non-profit that taught people around the world how to teach tech skills in their local communities. There was a shift to focusing on recent political events which was a major reason for my leaving. My take was if you personally want to do that, go for it. However, reacting to recent political events was not part of the group's mission. I wanted to spend my limited time on the group's primary mission of education.
“Hurdling trenches, crawling over shell craters, and walking through forests unhalted by intense gunfire, the tanks cannot be stopped by anything less than a direct hit from shells of considerable caliber,” reports The Ogden Standard of October 21, 1916, 4 p.m. City Edition
https://guides.loc.gov/chronicling-america-wwi-tanks
I teach tech of all kind, mostly Python programming and advanced data skills. I get deep satisfaction in helping learners on their journey. I also enjoy connecting with them as people. Teaching has made a fulfilling career for the last 20 years. Hopefully, I keep doing it for a couple of more decades.
The local climbing community chose to take care of this quietly without media or internet drama.