The inspiring life story from Brian Acton
https://thehustle.co/whatsapp-founder-got-rejected-by-both-twitter-and-facebook-before-19-billion-buyout https://www.theguardian.com/technology/2014/feb/20/facebook-turned-down-whatsapp-co-founder-brian-acton-job-2009 https://medium.com/the-story-of-grip/5-things-every-founder-can-learn-from-the-story-of-whatsapp-b6496bc4f54d https://thecoffeelicious.com/facebook-turned-me-down-the-job-rejection-letter-that-turned-into-a-4-billion-check-962c658d876c https://www.forbes.com/sites/georgeanders/2014/02/19/he-wanted-a-job-facebook-said-no-in-a-3-billion-mistake/#b9b2a2f52441