The Infrastructure Behind Twitter: Scale
100,000&#x27;s of servers for 
100,000,000 of messages&#x2F;day ?<p>I understand that half the servers aren&#x27;t even doing messages, but, isn&#x27;t WhatsApp doing <i>2 orders</i> of magnitude more messages with <i>3 orders</i> of magnitude (?) fewer servers?<p>Is that right?  I&#x27;m curious how one would justify 10,000X worse?<p>So for each message, 10,000X more equipment is needed?