Motley Fool Money: 10.10.2014

Costco hits an all-time high, Apple gets a letter from Carl Icahn, and semiconductor stocks send the Nasdaq lower. We analyze the latest headlines and talk with best-selling author Daniel Levitin about his latest book “The Organized Mind: Thinking Straight in the Age of Information Overload“.  Learn more about your ad choices. Visit megaphone.fm/adchoices