A healthy civilisation draws a line around the sacred and refuses to price what's inside it. The line moves, but the line exists.
A civilisation in decay erases that line.

Why prediction markets are a sure sign that our civilisation is in decay
Prediction markets are the clearest single sign our civilisation has entered a late and decadent stage. The reason isn't that they're new or sinister. It's that the case for them is defensible, the technology works, the outputs are useful, but the long-term effect is corrosive anyway.
