Proof Of Brain wasn't close for flipping the marketcap, PoB only has 21 million coins so the price per coin should be worth more than Hive in the long run.

Hive has over 300 million coins.

So I'm not sure if you were refering to the price per coin being higher than Hive, for awhile it was and so was Leos, but the marketcap of a Layer 2 I don't think i've seen on any chain where its higher than the Layer 1 it is on is what I'm saying.