Ask HN: Do entrepreneurship is brute forcing?

Hi, I'm a young and inspiring entrepreneur. I need advise. I saw lots of big businesses which is just launched by execution of arbitrary idea. Entrepreneurs are executing every idea (like brute forcing) just with a hope that it will work and strangely sometimes it works. Github, intragram etc. is the biggest example. I saw many people who are following this path and are successful. Do I need to follow the same path to becoming successful. Like many other people, the everyday new idea comes in my mind. But i won't accept it because it is not big enough. Is it worth spending my time on such thing. I like to ask this thing for high-profile people (like PG) and who had launched/working on big market. If the idea is good and not demanding much time or resource do I need to launch it? This question is striking in my mind when google switched off their google-reader. And, I read this quote More wood behind fewer arrows on http://yourstory.in/2013/03/why-do-companies-shutdown-popular-products/ I need help. - Confused guy.