Imagine there’s a drug that makes you say you love taking it. Imagine that it has no other effect.

Now if you take this stuff, then by definition you will tell all your friends that you enjoy it. And chances are, they will believe you. And they will want to try it themselves.

Meanwhile, you yourself will probably come to believe that this is an experience you greatly enjoy. After all, you keep saying so!

And now, can you think of any reason that the use of this drug would not rapidly spread across the entire world?