Uber filed its widely anticipated S-1 last Thursday, and Lyft 's stock price took a hit. Investors could have a little buyer’s remorse, while pundits are fretting over the complexity of making an apples-to-apples comparison. They should stop trying, and recognize that #Uber is to #Lyft what Amazon is to eBay : a whole different kind of platform that could pose a short, medium and long-term threat. Here’s why... …see more