Harry was to become the Next Voldemort

"And he shall mark him his equal"-Prophecy to Dumbledore concerning Harry and Tom

Tom-ASSUMED AS PROBABLY TRUE SO LETS RUN WITH THAT-Facts:
Afraid of death
Believes in prophecy
Loves trinkets with history
Afraid of Dumbledore
Evil
Once he heard the prophecy, he had to have a long think.He wasn't young anymore, by the time he killed the Potters,Tom would have been at least 45-50, and he would have tothink about the future, like, how much longer would his body be able to keep him alive? For a man who is afraid of death, living forever would require them to be able bodied too. But how could he do that? He had no heir,and even then, would it be as powerful as him? Then, he hears the prophecy, and is presented with two choices.One, is that this "equal" will rise against him, so he should try to kill him immediately, which as well all know ended up being his line of action, but having the same after affect as if he didn't try to kill young harry. Or,he could attempt to create his own heir, out of someone he "knew" would be equal to his own tremendous power and that he would be able to mould into his own servant before age wearied his own body, and he had to take his new place inside the next body. Tom wanted to turn Harry into his Darkest Servant, his next heir.