I don&#x27;t think that&#x27;s true. The MBA class at Colombia is 700 people. Every year.<p>That&#x27;s not <i>a</i> social network. It&#x27;s <i>a number of</i> social networks. It&#x27;s inevitable that you&#x27;ll only connect with a smaller number of classmates, and AFAIK classes are even organized with that in mind (the whole generation is split into smaller groups that then have classes together).