Moxie Marlinspike&#x27;s documentary &quot;Hold fast&quot; (2010) [1] inspired me to learn how to use a sextant. Most of the sextants you can get on eBay these days are just for decoration, however.<p>[1] &quot;Hold Fast: Stories of maniac sailors, anarchist castaways, and the voyage of the S&#x2F;V Pestilence...&quot; <a href="https:&#x2F;&#x2F;vimeo.com&#x2F;15351476" rel="nofollow">https:&#x2F;&#x2F;vimeo.com&#x2F;15351476</a>