Are you an expert in those subjects? No? Then you aren't a polymath. Gaining expertise in something isn't as simple as watching a TED talk, reading an article, or even mastering a textbook. You might be a jack-of-all-trades, but let's not dilute the meaning of the word polymath.<p>Keep in mind that the media you're consuming is meant to be easily digested. You might learn something, sure, but I've certainly started to get annoyed by the number of people citing factoids from TED talks. There's something to be said about people "knowing more" now that information is more accessible, but it is amazing the point at which people start to get lazy. I have too many Facebook friends talking about the physics of multiple universes without knowing the physics of a straw. Too many people want to talk about juicy stuff without understanding the beauty of foundations.<p>I also have this problem, and I've been trying to correct it. After 8:00 PM on weeknights, I stop using electronics. Usually, I end up roaming around the house and cleaning. Occasionally, I pick up a textbook from undergrad. Most importantly, without a screen in front of my face, I'm relaxing my mind, and I'm subconsciously thinking, "What is important to me? What is interesting to me? If I could commit some time to learning something at a deep level, what would it be?" So far, this seems to be guiding me in the right direction; I've gotten better at spending my time in ways that I think are productive for the long term (while also being enjoyable).