Since meeting him in 2012 I have always been impressed with the passion John has shown in developing the Quantopian Platform. The notion of richer developer tools for investors interested in algorithmic trading is an enormous opportunity. I enthusiastically watched John and his team methodically develop a powerful tool for quants to develop, test and refine strategies. The pace at which John and his team have added features has been impressive. I was so impressed I wanted to invest in the business! John's broad set of skills across technology and finance and his passion to democratize this activity is fantastic.