I hesitate to get all Clay Shirkey here, but I think this is fundamentally different from media conglomerates and Bell Systems, given that now anyone has the ability to build their own overlay service with relatively minimal investment.<p>Part of what I&#x27;ve been noticing is that we have these &quot;walled gardens&quot; today that people consider to be synonymous with &quot;lock in,&quot; but it&#x27;s actually easier for people to move from Viber to WhatsApp to Telegram to Signal today than it is for people to move from gmail to yahoo mail.<p>In a sense there&#x27;s <i>less</i> lock-in with centralized messaging services than there is with the federated ones, due in part to the move towards user-owned identifiers like phone numbers.