Hacker News on 19 July 2021

• Assange case: Key witness admits he lied
• Time to assume that health research is fraudulent until proven otherwise?
• Huge data leak shatters the lie that the innocent need not fear surveillance
• Apple sued by teen wrongly accused of shoplifting by unreliable facial-rec tech
• Don’t Wanna Pay Ransom Gangs? Test Your Backups
• Math Problems for children from 5 to 15 (2004) [pdf]
• Deurbanising the Web [pdf]
• Amazon Shuts Down NSO Group Infrastructure
• How to Learn Stuff Quickly
• Nvidia Shield TV Owners Are Pissed About the Banner Ads in Android TV