“Time” is the answer almost always. Standards evolve over time, as do the languages and frameworks. Old code is rarely rewritten, so you end up with layers of

“Time” is the answer almost always. Standards evolve over time, as do the languages and frameworks. Old code is rarely rewritten, so you end up with layers of code like geological strata recording the history of the developer landscape. There’s a more complicated aspect of “Conway’s law, but over time” that’s hard to explain in a comment. And anyway, Casey Muratori did it better: https://youtu.be/5IUj1EZwpJY?si=hnrKXeknMCe0UPv4 https://youtu.be/5IUj1EZwpJY?si=hnrKXeknMCe0UPv4