A version of this article first appeared on http://sarahpaddleswim.wordpress.com.  Simon Cocking specialises in covering Dublin tech / start up / innovation events. You can find him on Twitter @SimonCocking  Nick Bilton’s 2013 book Hatching Twitter, is an entertaining read about the roller coaster experience of the original founders of Twitter. One after another all of them ended … Continue reading Start up roulette : Why do so many founders get fired?