I think there are two Silicon Valleys.<p>The biggest companies like Google,  HP,  Intel and Apple are able to work on products so complex there is a ten year time horizon,  and occasionally we get a company like Tesla,  but the overwhelming number of the angel investor startups are about marketing first and technology second,  so the &quot;non-technical cofounders&quot; are looking desperately for technical cofounders.<p>Amazingly this even describes some of the unicorns.  Uber was ahead of the curve by a year or two with a mobile app,  but Uber is big because it has money for expansion and the war chest to fight city hall.