At this point there is not enough evidence to say you are right or wrong. While radiation may be much more prevalent the closer to the galactic center one gets, we still do not know what the threshold for radiation protection is for potential life bearing worlds. And what the limits of life forms developing actually are.<br /><br />If what you say is correct, that still leaves enormous potential for life bearing worlds. <div class="Discussion_UserSignature"> <p><strong>My borrowed quote for the time being:</strong></p><p><em>There are three kinds of people in life. Those who make it happen, those who watch it happen...and those who do not know what happened.</em></p> </div>