Hacker News on 19 February 2020

• Explorabl.es
• Bert Sutherland Has Died
• Almost everything on computers is perceptually slower than it was in 1983 (2017)
• Why SQLite succeeded as a database (2016)
• Hackers Were Inside Citrix for Five Months
• Stop Using Encrypted Email
• Let's Encrypt has turned on stricter validation requirements
• How 1500 bytes became the MTU of the internet
• Internet Society told to halt .org sale by its own advisory council
• IRS sues Facebook for $9B, says company offshored profits to Ireland