"while the experience that comes with age is valued in fields like music, it counts against you in tech." Is the experience generic (e.g. I'm a Python guru and

"while the experience that comes with age is valued in fields like music, it counts against you in tech." Is the experience generic (e.g. I'm a Python guru and Guido knows me on a first-name basis), or specific (e.g. I've spent 25 years writing Python and web interfaces for high speed factory sorting machines)? The latter makes you highly employable. The former means you're just going to be an expensive pain in the ass.