The second advice, investing in durable skills, is key. In addition to what the author mentions, I would point out that more change happens higher in the stack.

The second advice, investing in durable skills, is key. In addition to what the author mentions, I would point out that more change happens higher in the stack. There is relatively little change at the x86, C, operating system level, entrenched protocols. But once you start getting into the higher level languages, and in particular web, the churn is much greater. So personally I'm trying to stay away from those higher levels.