Arithmetic, Population and Energy

You might be interested in the lengthy discussion from a previous submission of this item:<p><a href="http://news.ycombinator.com/item?id=1382456" rel="nofollow">http://news.ycombinator.com/item?id=1382456</a>

&#62;The greatest shortcoming of them human race is our inability to understand the exponential function.<p>Nice demonstration of rates of growth.