I feel like not enough people appreciate the simple fact that Wikipedia is essentially the most well-organized and complete collection of human knowledge in existence, and furthermore, it’s available to everyone who has access to the internet for free in dozens of languages.
There are tens of thousands of individuals collaborating every hour of every day to collect knowledge and share it with the rest of the world purely out of the desire to document and teach, and millions of people spending hours in the Wikipedia rabbit hole learning about subjects that they would have had no opportunity to without it.
Wikipedia is amazing. It’s the modern Library of Alexandria.
Have you heard of Obsidian? It’s basically a note-taking/journaling app that allows you to link entries to other entries similar to Wikipedia. Overtime you create a wiki of your mind and experiences. It’s also free and saves your files in markdown.