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I can't say precisely. The system is designed to eventually return to an equilibrium point which is enough to cover 30 days of payouts. It has gone well below that point, but the rate at which it is dropping is also reducing. It should be expected to eventually be net gaining until it returns to the same point as before. Basically payouts will lower until it is finally allowed to recover.

I've been following it too. The reward pool is a big concern for many. Yet, I still don't understand the mechanics behind it.

Hope you are right and it will be able to self-adjust and find equilibrium soon.