My open question for anybody: With just a B.S. in Physics, what percent of the threads on PF can you contribute to conversationally or answer (if it's a question thread), and what percent are on topics with which you are familiar enough to understand the subject? Personally, I could contribute to ≈ <1% of these threads, being familiar with maybe 25-40% of the topics? Now granted, I'm still in high school, but as I scroll through (particularly the unanswered forum), I am completely helpless to contribute, which kind of irritates me, but nevertheless I'm curious to hear many responses from the more educated. Thank you!!!!