I think I have found a small typo (or perhaps it is a Nonary joke) in:
Boot.dev Blog » Backends » How Long Does It Take to Become a Back End Developer?
Under the section "How long it takes to learn to code depends on a few things", the last paragraph states that:
"Of course, there are many other tidbits of knowledge and training that can speed up your journey. I just listed 10 of the most common ones."
There are 9 points listed in the section, not 10.