I mostly agree, but the scale of what Twitter is doing technically is <i>very</i> different.<p>Network size is not as important as how messages are distributed within it. Whereas most WhatsApp messages are one to one, on Twitter they&#x27;re almost always one-to-very-many.<p>If 10000 Twitter users with 1000 followers each send a tweet, that&#x27;s 10000000 messages hitting queues. 10000 WhatsApp users sending a single message each are likely to result in 10000-20000 messages (sometimes people have group conversations).