1.0 link Rainbow Dash Network http://rainbowdash.net/ Scribus (scribus) http://rainbowdash.net/scribus http://rainbowdash.net/notice/3444231 @<span class="vcard"><a href="http://rainbowdash.net/user/32751" class="url" title="Metaltao"><span class="fn nickname mention">metaltao</span></a></span> Just one should be enough of an area of increased density to get the gravitational collapse ball rolling. It'd take Sagans of years to get it done, but the theory seems sound to me.