First of all, I'm a newcomer to quantum subjects, and if there are any mistakes in my exposure please don't get mad. And, of course, please corrcet me. Using the multiverse teory (every possibility will originate a new universe) I thought of a problem: Imagine I though of exposing myself to radiation (for whatever reason), if I consider seriously that option, it becomes a possibility, and then I changed my mind, in another universe I would go and expose myself. Then there would be two mes, one safe and another in exposure, but our quantiqual information would be the exact same, and thus we would enter at a paralelism, everything that happens to him happens to me, and his atoms would start changing by radiation, and so would mine, and if gets cancer so will I. Is this hipothesis valid?