There is an occasional event that happens to me while on HN where I see a title that catches my eye because it rings a certain bell in my mind. I click through the link and as the page loads my stomach fills with butterflies as I experience the strange sensation of finding another person has implemented an idea of "mine", at times with frightening accuracy with regards to how I conceived of it.

I use "mine" because obviously the idea is not mine. It's an idea I'm sure hundreds of us of have had.

This particular site/product was one I "dreamed up" immediately after a very disappointing interview performance. The sting of that experience made me want to fix it for other people by giving them a clear path for being prepared for "Google-esque" interviews. This particular implementation looks to be fairly well executed. I signed up and hope it works out because I think it could be useful.

What these experiences confirm for me is something we all already know. There are really no new ideas under the sun. Or at least they are very, very rare. Just pick a problem you know you can solve and then solve it the best way you possibly know how and if your best is better than anyone elses best, and it's a good idea, and the timing is right, you'll probably be successful.

On another note, I think it's interesting the creator choose the "2 egg problem" as the example problem. I believe it is the prime example of everything that is wrong with engineering interview culture. Not sure if that makes it ideal material for a site like this or pointless trivia.