Thinking you can't disclose too many details is a misnomer. Ideas are worthless — however good you think your idea is, there's many people who've had it, and pr

Thinking you can't disclose too many details is a misnomer. Ideas are worthless — however good you think your idea is, there's many people who've had it, and probably many who are considering it right now. Executing is the only metric that really matters. The iPhone wasn't such a success because it was a good idea, there were many smartphones on the market before that, it was the execution that mattered. Same for Dropbox. Or Airbnb. Or any other example you'd like to pick.