so if I go back in time to stop a certain event then it never happens which means I wouldnt need to go back to stop it which means it would happen which means I need go back and stop it which means it doesnt happen which means I wouldnt need to go back to stop it which means it would happen which means I need go back and stop it which means it doesnt happen which means I wouldnt need to go back to stop it which means it would happen which means I need go back and stop it which means it doesnt happen which mhhdyvg