The Dart authors are geniuses but even they can&#x27;t violate the laws of physics.<p>Dart is between two and five times slower than Java, as of six months ago [1].<p>It&#x27;s not clear whether Dart can close that gap since Java is not standing still either, so I remain completely unconvinced that Dart will ever be the replacement of Java on Android.<p>[1] <a href="http:&#x2F;&#x2F;benchmarksgame.alioth.debian.org&#x2F;u32q&#x2F;dart.php" rel="nofollow">http:&#x2F;&#x2F;benchmarksgame.alioth.debian.org&#x2F;u32q&#x2F;dart.php</a>