[Response]

It is also a power law, but not quite pareto. It’s not that 20% of costs give 80% of benefits. Maybe I’m missing your metaphor.

Just ppt

Hmm definitely unique, because if it’s something everybody does, you don’t even get to the top 10%. Useful: many skills can be useful. It depends on what you do with them. Who defines what is useful? You can redefine it.