This is the QA&D sessions following Prof. Colin Rourke’s presentation on De Sitter Space. Willem de Sitter found his eponymous space in 1917 at approximately the same time that Einstein completed his general relativity theory. Regarded as a curiosity it was emasculated by Hermann Weyl’s widely accepted “coherency postulate”. But, properly understood, the space fits recent observations (WMAP and Supernovae) perfectly and provides a fully Copernican model for the universe with no Big Bang, dark matter or inflation. As a bonus it also gives a non-cataclysmic explanation for Gamma Ray Bursts.