I have known George for 3 or 4 years. He is one of those smart entrepreneurs who is always willing to help others. YourMechanic would not be in existence if it was not for George's help early on. I have certainly benefited a lot from his insights and advice over the years!
George is the most insanely smart engineer I know. 8 years ago, when we worked together, he did things to a web browser no one knew were possible. And that pretty much defines everything he does - it seems impossible at first, but George somehow finds a way to do it.