A little more than a year ago, on a trip to Nairobi, Kenya, some colleagues and I met a 12-year-old Masai boy named Richard Turere, who told us a fascinating story. His family raises livestock on the ...

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Like it or not, our smartphones have become crucial tools for managing many aspects of our lives. Calls and text messages aside, we often rely on phone apps to keep track of meetings, school calendars ...