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mcgonigal etech09 etech game jane future iftf games args design gdc gdc2009 gdc09 developers conference user space experience isas games education uxweek2008 happiness reality alternate science boards ignite 2009 summit superstruct institute hack 2008 avant health positive psychology resilience superbetter optimism game design games for health game development financial times canada game education isacs blackberry devcon 2011 resilience games gamificati gamification innovation pax east 2011 gamers keynote jane mcgonigal game developers conference 2011 gameful game desig game design videogames psychology eustress perma f game design education poverty is not a game game design city managers collaboration game design creativity game design health care game design alternate reality positive impact happ city managers educared 2009 parenttoolbox scholarship education 2019 university michigan enriching consalvo bogost research studies