Hacker News on 30 December 2019

• What: A terminal tool to check what is taking up your bandwidth
• How an Alzheimer’s ‘cabal’ thwarted progress toward a cure
• Fake “like” factories – how we reverse engineered facebooks user IDs [video]
• What Is the Most Valuable Thing You Can Learn in One Hour?
• Switching from Chrome to Firefox
• The Linux codebase has over 3k TODO comments, many from over a decade ago
• ProtonMail takes aim at Google with an encrypted calendar
• RIP Syd Mead (Blade Runner, TRON Designer)
• Pedestrian routing that offers pleasant alternatives to the shortest route
• Boeing 737 Max: Automated Crashes [video]