1.0 link Rainbow Dash Network http://rainbowdash.net/ Cerulean Spark (ceruleanspark) http://rainbowdash.net/ceruleanspark http://rainbowdash.net/notice/3430224 @<span class="vcard"><a href="http://rainbowdash.net/user/2706" class="url" title="a boring guy"><span class="fn nickname mention">mushi</span></a></span> Computers actually can't do things randomly on their own. Modern systems tend to use either: a &quot;psuedorandom&quot; number generator, which produces not truly random, but still highly difficult to reproduce values, or they build up what they call an &quot;Entropy Cache&quot;, by sampling user mouse and keyboard entries, and in some cases, sampling user created files (Usually things like temporary internet files are used as &quot;seeds&quot;). The third method, used by organisations with a requirement for reliable &quot;true&quot; randomness involves the installation of a &quot;hardware randomness generator&quot; or &quot;Entropy card&quot;. Most use radioactive decay to generate random noise, but some use radio receivers to tap into universal background radiation to achieve the same.