If we consider different rates at which the circulating supply earned in the game returns to the pool over a longer period of time (1000 days), we can see that with any rate over 1% an equilibrium is reached quickly. Even in the worst case scenario where none of the blocks are spent, which is very unlikely as it would mean that no block is spent in the game, the amount of blocks in the pool is still 36% of its initial amount. Note that the circulating supply it considers is only the one coming from the game, the blocks earned through staking and the seed round will come in addition to those and will increase the size of the pool as they are spent in the game.