Wow. So many armchair geologists, both here and in the comments on TFA. Do you really think people haven&#x27;t already thought of a dozen reasons why GPS beacons&#x2F;synthetic DNA&#x2F;blah blah etc wouldn&#x27;t work?<p>Should we get some geologists in to comment on your issue tracker and propose solutions for your bugs?<p>Ninja edit: <a href="https:&#x2F;&#x2F;xkcd.com&#x2F;793&#x2F;" rel="nofollow">https:&#x2F;&#x2F;xkcd.com&#x2F;793&#x2F;</a> applies to programmers, too