How it works

After this market closes, I will ask @FairlyRandom to generate a random number M among 1 to 100 in the comments. The Mth unique trader of this market wins 300 mana from the lottery prize pool, if such a trader exists. Otherwise, the lottery falls through till next time.

For free play, make a trade with 1 mana and sell it. Your trade will be recorded and you will become a unique trader.

This market will resolve to xy%. The gamma-ray burst GRB 170817A was the first cosmic event observed through both light (electromagnetic radiation) and gravitational waves. The gravitational wave arrived about x.y seconds before the light ray.

Previous winners

@PaperBoy 100Ṁ

@hogshedges 100Ṁ

@Pancarre 300Ṁ

@wolf 400Ṁ

@Chumchulum 200Ṁ

@KarlWang 4000Ṁ

@WobertqUIQz 300Ṁ

@2ndPairofBoots 300Ṁ

@jbm 300Ṁ