It&#x27;s an idea that has been around for awhile: <a href="http:&#x2F;&#x2F;www.ri.cmu.edu&#x2F;pub_files&#x2F;pub2&#x2F;cozman_fabio_1995_1&#x2F;cozman_fabio_1995_1.pdf" rel="nofollow">http:&#x2F;&#x2F;www.ri.cmu.edu&#x2F;pub_files&#x2F;pub2&#x2F;cozman_fabio_1995_1&#x2F;coz...</a> is just one of dozens of papers covering the idea.<p>There even appears to be a patent on the idea:
<a href="https:&#x2F;&#x2F;www.google.com&#x2F;patents&#x2F;US7706917" rel="nofollow">https:&#x2F;&#x2F;www.google.com&#x2F;patents&#x2F;US7706917</a>