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We tend to believe statistics apply to other people, a bias researchers call unrealistic optimism.

Immediate rewards can outweigh delayed consequences, especially in addictive behavior.

Knowing the odds does not change them, and awareness of risk is not immunity from it.

I once ran into a student at a gas station, buying a lottery ticket. When I asked why, he offered a perfectly constructed explanation: He had an exam the next morning, and it was, he said, statistically impossible to have two pieces of bad luck in one day. Either he would pass the exam, or he would win the lottery. The odds of both failing were simply too low. (The clinical scenes that follow draw on experiences across multiple patients; identifying details and circumstances have been combined and altered.)

He knew plenty about probability—his chance of winning was vanishingly small, and he could recite it. So why spend the money? Perhaps that was the ticket’s real value. It could not meaningfully improve his odds—but it gave him another imaginable route to a good tomorrow. For an anxious mind, that can feel like relief.

He was wrong, of course—chance keeps no ledgers. But he was entirely human. And that brand of wrong is worth taking seriously, because on another night, in another life, it does not cost a few dollars. It costs everything.

The Man Who Had It Under Control

Around the same period, I met a couple, married just over a year, whose marriage was already straining under his drinking. He assured me—with complete sincerity—that he would never become addicted. He had it under control. He exercised almost daily; surely that protected him.

I told him what my clinical work keeps teaching me: I have never met a single person who started drinking, using drugs, or gambling with the intention of becoming addicted. Again and again, patients I have treated for addiction have........

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