"Now, with years worth of feature planning and a solid product design already..." Do you realize how fast this market changes? Anything you conceived years ag

"Now, with years worth of feature planning and a solid product design already..." Do you realize how fast this market changes? Anything you conceived years ago is most likely irrelevant, or at the very least, far less impressive than you may have thought at the time. It really sounds like you're overly attached to a single idea which you've spent years internally conceptualizing and now refuse to share (you've spent years on design but don't have so much as a mock-up to show?). I would focus more on getting a very basic demo together and coming back and doing a show HN thread, and then asking for comments.