&gt; Is there some reason to believe that with enough money software could be bug-free?<p>NASA with the Space Shuttle software came pretty close.  <a href="http:&#x2F;&#x2F;history.nasa.gov&#x2F;computers&#x2F;Ch4-5.html" rel="nofollow">http:&#x2F;&#x2F;history.nasa.gov&#x2F;computers&#x2F;Ch4-5.html</a>