&gt; maybe there&#x27;s much better technology to be discovered<p>Obviously we don&#x27;t have much to draw on, but it seems like our technological growth looks a bit exponential. I&#x27;d imagine a civilization that has been around for a million years would have discovered a hell of a lot of technology - but a million years is a blip in 13.82 billion years, the age of the Universe. It&#x27;s like 0.001% if I&#x27;ve got my maths right.