Thanks for the catharsis word, I have to look it up for the meaning.
20 years or equivalent to 5 times Olympics games, is a very long time to develop and improve a software. It's now comparable to the real-time Linux kernel, another open-source software albeit it's a kernel not a user application [1].
Any other open-source software that has a comparable development time that I'm not aware of? But as the old adage says it is better to be a tortoise than a hare, as long you're winning the game.
[1] 20 years later, real-time Linux makes it to the kernel:
https://news.ycombinator.com/item?id=41584907
[2] The Tortoise and the Hare: