Hello. So I want to take on a more intellectually fulfilling hobby than video games. I think I've narrowed it to three. I can only do one because of time constraints. Becoming really well read (like reading a book a week), becoming really good at playing the piano (I took five years of piano lessons about a decade ago and I still do some singing so I have a strong foundation of reading music), or becoming fluent in a foreign language (like Mandarin)? Which would you choose?