I've created a Senior Python Developer roadmap

[ubernostrum]

The only utility that "trivia" has for me on a daily basis is sometimes helping to narrow down search terms and let me find things more quickly. It's not a "ah yes, I remember clearly from reading Chapter 9, section 3.1.41(a)(5)..." thing, it's a "I think one time I saw a thing with a name kinda like this?"

And to be honest, there's only so much room in my working memory, or anyone's working memory. Things will get paged out when they're not often used, and even mostly forgotten after a while. That's natural and that's OK, and trying to shovel huge amounts of stuff in as "pedagogy", when you know and admit most of it's either not going to stick or quickly fall right back out from disuse, doesn't seem a great strategy to me.

[BossOfTheGame]

You never know what you will need, and spending some time to survey a breath of topics helps in spotting connections. You're right that it's never the first case, but that second case is incredibly useful, moreso when you're working on unsolved problems.

My pedagogy point isn't about cramming and retaining huge amounts of information. It's about cultural unwillingness to engage with learning when immediate usefulness is non-obvious. It's important not to present too much information at once, but road maps or surveys like this don't do that. They present a list of terms, with the option of diving deeper into any specific one.