<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><span style="font-family:arial,sans-serif">On Sun, Dec 18, 2016 at 4:56 AM, Adrian Tymes </span><span dir="ltr" style="font-family:arial,sans-serif"><<a href="mailto:atymes@gmail.com" target="_blank">atymes@gmail.com</a>></span><span style="font-family:arial,sans-serif"> wrote:</span><br></div><div class="gmail_extra"><div class="gmail_quote"><br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span class="gmail-">
><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">></div><font size="4"> Max Tegmark<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>has calculated that if 2 electrons in a microtubule<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div> become entangled they would become unentangled in less than a<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>picosecond<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>and that's far too short for structures as large as those in the brain to do any quantum logic processing. Light, the fastest thing in the universe, moves about a hundredth of an inch in a picosecond.</font></span></blockquote><span class="gmail-">
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</span><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">></div>A hundredth of an inch is larger than many neurons,</blockquote><div><br></div><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"></div><font size="4">A hundredth of an inch is<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>about 4 times shorter<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>than<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>the shortest neuron,<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>and the longest neuron is over a<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>METER<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>long, the longest cell in the body. And Penrose and Hameroff<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div>did a lot of theorizing but provided zero experimental evidence that electrons in microtubules are entangled, or that anything in neurons is entangled, or that the brain uses any sort of quantum logic in its information processing. Nor is the human brain very good at doing the sort of things that we know for sure that Quantum Computers would be good at, like factoring large numbers or simulating quantum processes; conventional non-quantum computers aren't very good at those things either but they're better than we are.<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div></font></div><div><font size="4"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"><br></div></font></div><div><font size="4"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> John K Clark</div> </font></div><div><font size="4"><br></font></div><div><font size="4"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"><br></div></font></div><div><font size="4"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline"> </div></font></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div class="gmail-HOEnZb"><div class="gmail-h5"><br></div></div></blockquote></div></div></div>