Hacker News on 17 February 2015

• An Open Letter to Tim Cook Regarding the App Store 70/30 Revenue Split
• Why the world's biggest military keeps losing wars
• Duplicate SSH Keys Everywhere
• Tesla Motors Announces a New Home Battery
• My Love-Hate Relationship with Stack Overflow
• “RNG broken for last 4 months”
• First fully sandboxed Linux desktop app
• Lego’s 1981 Ad Campaign
• Shipping Culture Is Hurting Us
• The billionaire’s typewriter