 When dealing with the associated question of the infinity of the number of souls FitzRalph discusses the nature of the infinite. He comments that the eternity of the world does not necessarily imply an infinity of souls, since the first man could have been made at a certain time and so have a finite number of descendants. Again, through reincarnation a finite number of souls could be continually reborn throughout a perpetual time. FitzRalph continues by pointing out that some people say that an infinity of souls is in no way impossible, or, at least, does not involve a contradiction, since God can make an actual infinite number of souls, angels, or beings at once, or he can do so successively, so that an actual infinite will exist at some future time, even given that the world began at a certain point.