[oxfeed65261]

An interesting paradox of the programmer job market is that spending time mastering developer tools and reaping the corresponding productivity improvements at one job has zero value when confronted by a whiteboard coding interview for another job.

[TeMPOraL]

But they may have value once you get past the interview.

Don't forget another interesting paradox - spending time mastering tools and technologies tangentially (if at all) related to your current job has low value now, but is also what makes it possible for you to take that another job a year later and double your salary.

Meta-work is pretty profitable for individual.