[jpgvm]

Knowledge is never meaningless, knowledge always has been and always will be power.

If you seek to understand the massive changes our world is going through then the answer is the same as it's been for ~20 years now, learn to write software and keep on top of what is cutting edge.

Generally speaking if you want to know why the world moves in such ways then you should seek to understand finance as the answer to almost every why (rather than how) can be summarised crudely as "because money".

These two branches of knowledge will be enough to survive and if you are any good at either of them thrive in a changing world.

The serious stuff aside at 16 there is plenty of time to invest in things that will make you happy regardless of how the world changes. Get out and see the world, travel, be amongst nature, meet new and interesting people, persue hobbies, make things with your hands, etc. Experiences contain knowledge but they are more than that, they are the intangible that make life worth living.

Even if AI takes over everything those things will still be rewarding.