Maybe saying it was set is the wrong thing. I meant that at any given moment it could be calculated. I assumed it was fluid but it isn't infinite (is it??). I was just wondering if the reward we see are a percentage of that amount and it is somehow tied to it. I would assume (again, could be missing the boat) that there is a percentage increase that could be determined for the reward pool and if we are upvoting as a community at a higher rate than it grows, we could be devaluing our own previous upvotes before payout without realizing it. Prior to HF19 we didn't have the collective power we have now so it seems to make sense on the surface.