Hacker News on 23 January 2019

• Why are glasses so expensive? The eyewear industry prefers to keep that blurry
• Twitter migrates data to Google Cloud
• New Dell XPS 13 developer edition now available
• Travis CI acquired by Idera
• Why I use old hardware
• Chromecast Support for Firefox
• Our Software Dependency Problem
• Alarming Decline of Quality Youth Playtime
• Julia Language Co-Creators Win James H. Wilkinson Prize for Numerical Software
• Oracle allegedly underpaid $400M in wages to underrepresented employees