Hacker News on 13 October 2018

• Teach Yourself to Echolocate: A beginner’s guide to navigating with sound
• Ask HN: 40+ Career Advice?
• The Reason We Haven’t Directly Detected Dark Matter
• CSS Layout cookbook
• A Great Old Timey Game Programming Hack (2013)
• Ten years ago today, I had the idea for an app I thought was interesting
• It’s better to be born rich than gifted
• The Big List of RPG Plots
• The Magic Leap Con
• On Cash