In addition to that, "X is emergent" implies "X doesn't go all the way down". So, wetness is emergent, but energy probably is not. The reason why some people are excited about emergence, I'll wager, is that it lets them resist what I'll call the Cherry Pion fallacy (i.e. "no cherry pie without cherry pions").

Now, that may not be very profound. But it's not completely empty.