You can read books till the cows come home, but don't expect to become an expert from reading alone. I can't imagine anyone on their deathbed wishing they'd spent more time reading on the toilet Vs actually practicing a skill.
I'm a software engineer posting on Hacker news. I know how to learn a skill.
This is something else, that you can have, if you read lots of books and learn more languages.
Becoming smart is, in part, about being exposed to lots of others thoughts, and lots of facts, and discussing those things and thinking through them yourself.
One does not beget the other.
I am not calling out the previous reply.
Is it as simple as having information and experience?
I have read everything on being a carpenter but I have never practiced, so therefore I am “book smart” when it comes to carpentry?
I guess this doesn’t really cut it because when someone claims their “steet smart” as a way to combat feeling inferior to someone else they have credited as “book smart” what they’re really trying to say is that they have knowledge that’s more useful in different situations? Or more practical situations?
The more I think about this the more it seems like claiming to be “street smart” is just saying “hey, I’m smart too, just in a different way” when you’re feeling a bit less than someone.
What breaks down is thinking this dichotomy captures the state of play wrt knowing lots of things. One of course has to practice knowledge, if that knowledge involves practicable skills, if one wants mastery.
If one wants to know history, or philosophy, or... many of the actual large bodies of knowledge that exist... one needs to get comfortable very regularly opening books. That doesn't mean it's all that's required!
I only used "book smart" as it is an Americanism and this site has a large American and/or people who learnt to speak en-US. I don't think anyone else would use that term.
The best way to actually command subjects is to work on them. Spend some time at companies doing the things you want - preferably in high paying jobs - and then start something on your own where you have to wear all the hats and submerge yourself in the technical details.
It's not as deep as academia, but it's certainly broad. This tactic might be what you're looking for.
And if you get exceedingly lucky, you might wind up with the capital and stumble upon the kind of unexplored areas ripe for growth that Elon Musk did. That's probably the ideal scenario - you get to work on incredibly interesting subject matters through hiring the best talent in the world. Use your team as a high level search and filter algorithm, and be present to learn and enjoy the process.
I'm nowhere near as successful but have employed people to do exactly that. It's not a bad alternative.
I am talking about how you fit in learning the real knowledge of our collective culture over a lifetime, no matter what else you do.
Basically I am calling BS for what it is.
For that I value it.
What we need is to develop habits of constant learning.
Here is one essential thing you can do to start learning a lot:
Fill your home with dual-language books, and keep opening them. Put a stack on your toilet.
By dual-language books, I mean books with the original language on one side, and your native language on the other. You'll find that the entirely of the classical pantheon, as well as much great literature and philosophy from many cultures is available in this form.
Spreading math books around your house helps too, of course, along with those on the other topics you want to master.
Keep opening them. Life is long, each day you can learn a bit more.
"Every life is many days, day after day. We walk through ourselves, meeting ghosts, giants, old men, young men, wives, widows, brothers-in-love. But always meeting ourselves."