The Harvard psychologist Joshua Greene is an expert in “trolleyology,” the self-effacing way he describes his research into the manifold variations on the “trolley problem.” The basic form of this ...

The trolley problem is a story philosophers often use to get people thinking about ethics and their obligations to others. Traditionally, the problem has us imagine we are an onlooker standing next to ...

Sign up for Forwarding the News, our essential morning briefing with trusted, nonpartisan news and analysis, curated by Senior Writer Benyamin Cohen. Last week, the ...

Forbes contributors publish independent expert analyses and insights. I focus on innovations aimed at making the world a much better place. Should the driver of a crashing car be allowed to swerve ...

Years ago, a trucker driving down the western slope of the Rocky Mountains lost his brakes. As his truck accelerated, he hoped to make it to the next runaway truck ramp before losing control. However, ...

Picture the following situation: You are taking a freshman-level philosophy class in college, and your professor has just asked you to imagine a runaway trolley barreling down a track toward a group ...

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