Hacker News on 23 June 2015

• I spent the last 15 years trying to become an American and failed
• The man with 1,000 klein bottles under his house [video]
• Three hundred programming interviews in thirty days
• Happy 10th birthday to us
• Fourier series
• The Way Humans Get Electricity Is About to Change
• Commit messages are not titles
• Google Play Music – free, ad-supported radio
• A world without work
• Show HN: Hypatia 0.2, a 2D adventure game engine