In the context of software, I think "how old is old" depends on how web based the software has been over its lifetime.

I think 8 years is old for software that has heavily Web based like Deno. But Windows and Emacs have had portions of their lifetime without the Web in a meaningful way, so 8 years would be young.

ty. I like this over others as it uses the "web" as the basis for relativity.