Quote Originally Posted by Assertn
I think you guys are confusing this with my own personal explanation, which is a completely fabricated speculation. (I was the one that suggested that the fruits originated from the depths of the sea, as a reincarnation of the previous owner's ability.)

Perhaps the part about the fruit floating up from the deep seas, but I think Oda has pointed out that the same Devil fruit powers can't exist AT THE SAME TIME, which means that a new user of the same power may emerge once the previous one dies, which is sort of the point.