Power Trip

The 50/50 Murder

A thought experiment on how we measure risk when the fate of the world hangs in the balance

Rob Reid
GEN
Published in
11 min readOct 1, 2018

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Illustration: Daniel Zender

This is the first installment of “Privatizing the Apocalypse”, a four-part essay to be published throughout October.

Imagine a brilliant would-be killer arranges the following scenario:

A coin will be flipped. If it’s heads, someone dear to you will die. If it’s tails, nothing happens. The bad guy — who is very bad indeed — will eagerly cheer for heads. But whatever the outcome, he’ll accept the coin’s verdict.

Let’s add that if it’s heads, the death will be 100 percent certain. But it will also be instant, painless, and without warning. And if it’s tails, your loved one will never know about any of this. Nor will you, or anyone. In other words, no PTSD. Nor even the faint, fleeting trauma of a rollercoaster ride.

And so, the coin is flipped, and… huzzah, it comes up tails! The bad guy is pissed. But rules are rules, so your loved one lives.

Years pass. Then one day, some ingenious cops discover all of this. Being geniuses, they’re also able to establish — with full certainty — that the bad guy will never do this again. Indeed, he poses absolutely no threat to society.

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Rob Reid
GEN
Writer for

Podcast host at after-on.com Author (“After On,” “Year Zero,” etc). Founder, of Listen (which created the Rhapsody music service). Tech investor. TED Talk-er.