7 ms·

Theres a high scalability post from years ago that has a bit more information. http://highscalability.com/blog/2014/3/31/how-whatsapp-grew-to-nearly-500-million

• vadfa 5y ago
  >19B messages in & 40B out per day whatsapp being a closed system I don't understand how this disparity is possible.
  • the_other 5y ago
    Most people are in group chats.
• aledthemathguy 5y ago
  this is great. wondering if Telegram also have a post similar to this? (unlike whatsapp, they do store the messages)
• bjarneh 5y ago
  Thanks, it does seem like choosing a language that was made for doing things in parallel to begin with was a good idea. To be honest, I've always felt that programming in functional languages creates less bugs, but perhaps that's just my imagination.
  • dunefox 5y ago
    It certainly creates fewer bugs of a specific nature, depending on the language.