Originally Posted by Ant-manic
then why bother having Peter bitten by a spider?
What has Peter Parker got to do with the Extremis or anything else in the Marvel Cinematic Universe? There is no connection at all. His origin is explained in his own movies, produced by Sony. And if you missed the last one, the radioactive spider bite wasn't even the cause of his powers. They changed it to some muddled BS about his father's experiments at Oscorp.