From my 6 minute IGDA Scotland talk.
Basic idea is too much (serious) game design is reinventing the wheel, based on rumour, speculation and it isn't good enough.
We need to be evidence based. We need to share practice and we need design technique support to leave the alchemic approaches behind and become more dependable as designers.
Clipping is a handy way to collect important slides you want to go back to later.