"Reinventing the wheel is a young man's game" - Gary Bernhardt
Thing is, most young people (read: 20's) don't understand this. They think they need to be the person who came out with underscore.asm (or whatever terrible fad) to work on their "brand." Get those Github stars! Write more blog posts! Get more Twitter followers!
Because nothing says "hacker" like slavishly believing increasing a bunch of crappy vanity metrics means anything.
Remember that I Love Lucy episode where Lucy is working at the chocolate factory? That's what keeping up with new technology is like. And all the kids think that the problem is that one of the pieces of chocolate rolling by isn't theirs.
Go to work, do the 8 hours, only stay if the team really needs help.
No one is going to remember overtime when the next round of firings comes.
One should keep learning, after all the technology changes everyday, but not at the expense of family and friends.
There is only one life.