It started with a simple Google search to compare credit cards, but when nothing helpful turned up, an idea was born. Tim Chen is the founder and CEO of NerdWallet, a financial advice website with more than 100 million yearly users. While struggling to compare credit cards online, he got the idea for a website with all types of financial advice and products. He told Kai Ryssdal that the idea resonated with millennials because “millennials are just used to comparing things. Even college professors.”