In fact the most important breakthroughs in science are never EUREKA! In a room with scientists working on stuff there is never one who stands and shouts Eureka. They would just work and sometime will come together and laugh about something. Then others would walk over and ask what are you laughing about. They would say well we were working on this and then this happened! Totally unexpected. Those moments are usually the starting points of great inventions.
Here's how The CEO of The Next Web, Boris Veldhuijzen van Zanten had a similar 'Eureka' moment. He went ahead and built a product (Twitter Counter) that became a huge success simply by straight away hacking stuff.
Here's the full story on that.
https://www.youtube.com/watch?v=GjH7Esa1C1Q
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