&gt; Every place is different<p>Totally.<p>&gt; they seem to be &quot;right place, right time&quot; but sometimes it is simply that they are designed to mesh well with an existing infrastructure<p>Mmm there can be other elements such as &quot;right person&quot; and &quot;right way to solve the problem&quot;.  Sometimes the keys to success aren&#x27;t easily condensed into soundbytes, so they aren&#x27;t widely known.  Air B&amp;B wasn&#x27;t the first home sharing website, but there were probably some ingredients in their secret sauce that fall under the HN definition of &quot;execution&quot;.  We don&#x27;t know all of those ingredients, but they differentiated Air B&amp;B from the pack.<p>So, I&#x27;d argue there is a right solution for Cambodia&#x27;s e-commerce, and any problem really.  It may not become a billion dollar company, but there is a way to make it profitable.  There simply is not a model that&#x27;s easily copyable from the US.  Conditions are very different.  There are definitely people working on this problem.  Adoption rates appear slow to me.  Time will tell when they&#x27;re successful.<p>&gt; The trick here is to take something which is is known to work and try to think about what changes would make that thing work where you are<p>Yeah we are in agreement.