<?xml version="1.0" encoding="UTF-8" standalone="yes"?><oembed><version><![CDATA[1.0]]></version><provider_name><![CDATA[Azimuth]]></provider_name><provider_url><![CDATA[https://johncarlosbaez.wordpress.com]]></provider_url><author_name><![CDATA[John Baez]]></author_name><author_url><![CDATA[https://johncarlosbaez.wordpress.com/author/johncarlosbaez/]]></author_url><title><![CDATA[The Three-Fold Way]]></title><type><![CDATA[link]]></type><html><![CDATA[Some blog entries about doing quantum theory using the real numbers, the complex numbers and the quaternions.]]></html><thumbnail_url><![CDATA[https://i2.wp.com/static.tvtropes.org/pmwiki/pub/images/three_amigos_ver2-770439.jpg?fit=440%2C330]]></thumbnail_url><thumbnail_height><![CDATA[330]]></thumbnail_height><thumbnail_width><![CDATA[324]]></thumbnail_width></oembed>