Hacker News on 4 May 2021

• Instagram ads Facebook won't show you
• Please fix the AWS free tier before somebody gets hurt
• Cinder: Instagram's performance-oriented fork of CPython
• Efficiency Is the Enemy
• On incels, dead bedrooms and the hard problems of loneliness
• Pandora says laboratory-made diamonds are forever
• Multitasking hurts performance and may even damage the brain (2018)
• Show HN: Control your Bose headphones from your Mac's menubar
• How Big Tech got so big: hundreds of acquisitions
• Observable Plot