> The big investment in your career will be ideas that stand the test of time.

This is spot on in my experience.

As I grow in my career as a software engineer, it's funny how much more often I notice that the things that set one apart in the field is a level-headed understanding of the fundamentals and a calm resolve to take into consideration what's worked in the past, much more than one's ability to "chase the shiny".

Honorable mention of the Lindy Effect [1] here - one of my favorite ideas from Antifragile [2].

[1] https://en.wikipedia.org/wiki/Lindy_effect [2] https://www.amazon.com/Antifragile-Things-That-Disorder-Ince...