“why is I/O in docker slow, and how would you improve it” is pretty esoteric knowledge now, but would have been considered basic knowledge (for other applications, not specifically just docker) only 12 years ago.

I have had people working who don’t in the slightest understand how a filesystem works, so taking it a step further is impossible.

When I tune things I am asked how I know, but everything is just built from the basics, and the basics don’t make you feel productive, so they’re always skipped when possible.

Keeping tech fast, if my worldview holds. One reason I left frontend work before was that none of my colleagues seemed to care that we shipped MBs of code to the client. I also tire of APIs that are in the multi-second response time arena, often because no one seems to bother with database indexes or JOIN optimisation. This should be banal, everyday stuff.

Maybe we have too many layers of abstraction. Or there's just too much work to do now that businesses combine many roles into one?