“WhatsApp co-founder Jan Koum: “Most of startup ideas are absolutely stupid”” by @d_lugansky @techandthecity/whatsapp-co-founder-jan-koum-most-of-startup-ideas-are-absolutely-stupid-501ae81d28aa?source=twitterShare-a02dd1574d08-1493191375" rel="noopener noreferrer">https://medium.com/@techandthecity/whatsapp-co-founder-jan-koum-most-of-startup-ideas-are-absolutely-stupid-501ae81d28aa?source=twitterShare-a02dd1574d08-1493191375