I feel like one point that is missing in this conversation is that sometimes when you don't talk to people about your ideas you miss out on a lot! I frequent a

I feel like one point that is missing in this conversation is that sometimes when you don't talk to people about your ideas you miss out on a lot! I frequent a lot of technical mixers in the region and I talk to a lot of people about their ideas (and sometimes about my ideas). Not to mention validation (how many people get excited about your idea), but there are a lot of helpful criticism or leads to be found by telling people your idea. There were a ton of folks that, after having heard what they were doing, I was able to point them to similar entries in the field ("your idea sounds really similar to this existing site, but they're different because of X") or to tools that could help them ("hey, have you heard of twilio/stripe/etc, because that could help you bootstrapped quickly", or "hey, you should talk to X, he's actually working on related topic and could give you some insight"). If you're some huge company (Apple, Facebook, Google) you already have a huge pool of internal brains to pick. If you're one lone entrepreneur on a mission, I'd say you benefit a lot more from telling good people about your idea than it is to stay mum about it.