{"version":"1.0","type":"rich","provider_name":"Acast","provider_url":"https://acast.com","height":250,"width":700,"html":"<iframe src=\"https://embed.acast.com/$/8cf4cec7-5a0f-49c5-8ec9-36941b5c6b6e/1f6f3485-51b2-43f6-8d8d-6e4ec6413fe5?\" frameBorder=\"0\" width=\"700\" height=\"250\"></iframe>","title":"Slack co-founder Cal Henderson: 'Email is the cockroach of the Internet'","thumbnail_width":200,"thumbnail_height":200,"thumbnail_url":"https://open-images.acast.com/shows/61ba0b311a8cbef1d93cf121/61ba0b4a40076a001272300c.jpg?height=200","description":"The Sunday Times' tech correspondent Danny Fortson brings on Cal Henderson, co-founder and CTO of Slack, the wildly popular business messaging platform, on founding photo sharing company Flickr (2:30), its ill-fated sale to Yahoo (6:00), starting again (9:00), the accident that became Slack (10:30), being a unicorn (14:30), his early days in London (17:00), learning to be an optimist (19:15), why he's not worried by Microsoft (21:00), 'Calloween' (25:00), the power of emojis (28:00), what's it's like to be personally worth hundreds of millions of dollars (32:45) and loving Lego (34:00).","author_name":"The Sunday Times"}