Is Augur a zero sum game? By this, I mean if there is a fixed pool of individuals that have engaged X REP in prediction events, once all events are settled and payouts are given (and fees paid), will these individuals still hold X of REP.
Why would it be not? Well, consider there is a dichotomous event (yes/no), with odds 0.3 and 0.7. Then, I buy 1 REP of yes shares, and 1 REP of no shares. If I win, I will receive less than 2 REP.
This is what I added into the pool was more of what I obtained of it. If we all do that, money being distributed is lower than that bet. What is the difference?