<story><title>Communicating with people on psychedelics</title><url>http://qualiacomputing.com/2015/05/22/how-to-secretly-communicate-with-people-on-lsd/</url></story><parent_chain><item><author>sqlftw</author><text>Many years ago I tried LSD, and for whatever reason, I never seemed to experience visual hallucinations.
However, in recent years, cars have started having LED tail lights, which really bother my eyes.
Several times I have asked my friends, &amp;quot;Aren&amp;#x27;t those terrible!?&amp;quot; to which they might reply, &amp;quot;They are pretty bright.&amp;quot;
Bright! They aren&amp;#x27;t just too bright, they are intensely STROBING! Can normal people not see that? Is this the flashback I was promised?</text></item></parent_chain><comment><author>tyho</author><text>Low frequancy PWM is annoying, it&amp;#x27;s not just you:&lt;p&gt;&lt;a href=&quot;http:&amp;#x2F;&amp;#x2F;www.candlepowerforums.com&amp;#x2F;vb&amp;#x2F;showthread.php?104151-Irritating-trend-in-automotive-lighting-PWM-taillights&quot; rel=&quot;nofollow&quot;&gt;http:&amp;#x2F;&amp;#x2F;www.candlepowerforums.com&amp;#x2F;vb&amp;#x2F;showthread.php?104151-Ir...&lt;/a&gt;</text></comment>
<story><title>Communicating with people on psychedelics</title><url>http://qualiacomputing.com/2015/05/22/how-to-secretly-communicate-with-people-on-lsd/</url></story><parent_chain><item><author>sqlftw</author><text>Many years ago I tried LSD, and for whatever reason, I never seemed to experience visual hallucinations.
However, in recent years, cars have started having LED tail lights, which really bother my eyes.
Several times I have asked my friends, &amp;quot;Aren&amp;#x27;t those terrible!?&amp;quot; to which they might reply, &amp;quot;They are pretty bright.&amp;quot;
Bright! They aren&amp;#x27;t just too bright, they are intensely STROBING! Can normal people not see that? Is this the flashback I was promised?</text></item></parent_chain><comment><author>agentgt</author><text>I hate to continue your tangent but I do feel something that is relevant to the OP article are new vehicles that have blinking break lights.&lt;p&gt;Most people don&amp;#x27;t notice these new break lights (I think its on Chevy cars) but when the driver breaks there is a very fast and subtle blinking of the red tail lights (opposed to just the red tail lights being on for older cars).&lt;p&gt;I only noticed this blinking while under... but now I see it often but my wife does not. ie its similar to the pong bar &amp;quot;C&amp;quot; letter in the article.</text></comment>