Hacker News on 9 April 2017

• The Utter Uselessness of Job Interviews
• Does it scale? Who cares (2011)
• Farmers look for ways to circumvent tractor software locks
• A quick look at the Ikea Trådfri lighting platform
• Textbook manifesto (2016)
• How do you make programmers work 60-80 hours per week?
• High prevalence of diabetes among people exposed to organophosphates in India
• The presence of microplastics in commercial salts from different countries
• How ski lifts are installed: Vail's new Chair 5 (2011) [video]
• Photos from Inside North Korea (2014)