Does the outie predate the innie?

Outies predate.
The bellybutton you end up with has a lot to do with how you were separated from the placenta at birth. Outies are more easily achieved by basic methods.

It was a button before it was a hole, hence the name.

So why the move to the recessed bb?

A baby has the placenta attached to the belly for a couple of weeks after birth. It forms its own kind of scar, and it does not have anything to do with anyone but the baby’s body. I don’t know about which predates or if either does, but this would appear to be a genetic item.

hmm…a discrepency b/w answerers I’ll wiki…

@Ltryptophan
1. so it won’t be irritated by your belt.
2. because doctors/midwives are showoffs
3. everybody wants the latest fashion