Wonder what the church folks think about the dude’s soul?
Does he/she have one?
If life begins at conception, between a sperm and egg, and this did not happen, is it life?
Are you arguing that not all twins have a soul? Or are you just making an atheist argument against souls altogether?
Monozygotic twins, frequently referred to as identical twins, occur when a single egg is fertilized to form one zygote (monozygotic) which then divides into two separate embryos. The division of the developing zygote into 2 embryos occurs within 8 days of fertilization 99% of the time.