If you have the freedom and you love computers and programming, depending on your taste, making games, retro hardware, OSs, database or programming languages (t

If you have the freedom and you love computers and programming, depending on your taste, making games, retro hardware, OSs, database or programming languages (type systems/proofs) is the best thing in the world. It's intellectually challenging and if you don't need make money per se, it's very rewarding. I recommend it.