If reincarnation were to be true, what is its reasoning? Why are we here? And if we are here for a reason, and we do die and are reincarnated, must that not mean we are bound to have changed for one reason or another in each life? And if reincarnation were true, then all souls would be be old from the beginning of time, so new souls would not exist. People in numbers have been rising, so would that not account for the lowered number of animals, and extinction or endangered species?