Why are some people incurious? Is curiosity a teachable thing? And why, if all knowledge can be googled, is curiosity now the domain of a small elite?\xa0Listen as Ian Leslie, author of\xa0Curious, talks with\xa0EconTalk host Russ Roberts why curiosity is a critical virtue, why it's now in dangerous decline, and why, when it comes to what sustains long-term fascination, mysteries beat puzzles every time.