Hacker News on 24 February 2020

• “We found PayPal vulnerabilities and PayPal punished us for it”
• Cloudflare silently deleted my DNS records
• Andreessen-Horowitz craps on “AI” startups from a great height
• Donald Knuth was framed
• Katherine Johnson, NASA mathematician, has died at 101
• EU Commission to staff: Switch to Signal messaging app
• Google interviewing process for software developer role in 2020
• Pwn.college
• T5: The Text-to-Text Transfer Transformer
• On Voice Coding