+</p>
+</li>
+</ul>
+</div>
+
+<div id="outline-container-sec-3-1" class="outline-3">
+<h3 id="sec-3-1"><a id="ID-d2375acc-af14-4f18-8ad0-7949501178c5" name="ID-d2375acc-af14-4f18-8ad0-7949501178c5"></a><span class="section-number-3">3.1</span> Brain</h3>
+<div class="outline-text-3" id="text-3-1">
+<ul class="org-ul">
+<li>Brain appears to have more than 3D dimensional design:
+<a href="https://singularityhub.com/2017/06/21/is-there-a-multidimensional-mathematical-world-hidden-in-the-brains-computation/">https://singularityhub.com/2017/06/21/is-there-a-multidimensional-mathematical-world-hidden-in-the-brains-computation/</a>
+</li>
+
+<li>Brain appears to use geometry to map thoughts and even sounds:
+<ul class="org-ul">
+<li><a href="https://www.quantamagazine.org/the-brain-maps-out-ideas-and-memories-like-spaces-20190114/">https://www.quantamagazine.org/the-brain-maps-out-ideas-and-memories-like-spaces-20190114/</a>
+</li>
+<li><a href="https://www.quantamagazine.org/goals-and-rewards-redraw-the-brains-map-of-the-world-20190328">https://www.quantamagazine.org/goals-and-rewards-redraw-the-brains-map-of-the-world-20190328</a>
+</li>
+</ul>
+</li>
+
+<li>It directly inspires <a href="#sec-4-1">Geometrical computation</a> idea and nicely fits
+with <a href="#sec-3-2">CM-1 Connection Machine</a> design.
+</li>
+</ul>
+</div>
+</div>
+
+<div id="outline-container-sec-3-2" class="outline-3">
+<h3 id="sec-3-2"><a id="ID-01aa65c1-3d44-44a8-9b90-58454bc6be80" name="ID-01aa65c1-3d44-44a8-9b90-58454bc6be80"></a><span class="section-number-3">3.2</span> CM-1 Connection Machine</h3>
+<div class="outline-text-3" id="text-3-2">
+<p>
+<a href="https://en.wikipedia.org/wiki/Connection_Machine">https://en.wikipedia.org/wiki/Connection_Machine</a>
+</p>
+
+<ul class="org-ul">
+<li>see: <a href="#sec-4-1">Geometrical computation</a>
+</li>
+
+<li>Computation unit has local CPU and RAM.
+</li>
+
+<li>Data is pre-distributed across computation units.
+</li>
+
+<li>Machine's internal 12-dimensional hypercube network allows to
+efficiently simulate arbitrary dimensional network topology between
+computational units. So that when we are solving/simulating for
+example 5 dimensional problem, we can arrange computational units
+into virtual 5D network. See:
+<a href="http://www.mission-base.com/tamiko/theory/cm_txts/di-ch2.html">http://www.mission-base.com/tamiko/theory/cm_txts/di-ch2.html</a>
+</li>
+</ul>
+</div>
+</div>
+</div>
+
+<div id="outline-container-sec-4" class="outline-2">
+<h2 id="sec-4"><span class="section-number-2">4</span> Ideas</h2>
+<div class="outline-text-2" id="text-4">
+</div><div id="outline-container-sec-4-1" class="outline-3">
+<h3 id="sec-4-1"><a id="ID-171fe375-c737-41e6-b429-a414f6abc5d8" name="ID-171fe375-c737-41e6-b429-a414f6abc5d8"></a><span class="section-number-3">4.1</span> Geometrical computation</h3>
+<div class="outline-text-3" id="text-4-1">
+<ul class="org-ul">
+<li>Inspired by <a href="#sec-3-1">Brain</a>.
+</li>
+<li>Wits nicely with <a href="#sec-3-2">CM-1 Connection Machine</a> properties.