An article by Rob Blackhurst in the UK’s New Statesman states that “whilst think tanks and their policy wonks have proliferated, their influence on policy has declined sharply”. This piece has sparked a lively debate at the Demos blog about “how to stay influential and competitive, without drifting away from the very people whose lives your ideas are intended to benefit”. Pitching in to this discussion, the Global Ideas Bank observed that “both Demos and New Economics Foundation style themselves increasingly as think and DO tanks”. The diminishing power of pure thought to change social reality will be debated at Doors 8 – so for now I’ll do some useless point-scoring: the Netherlands Design Institute (where Doors was born) called itself a think and do tank back in 1994 – as it shown on this prototype (by Zuper) of our first website . (I’m sure others used the term before we did: do tell me if you know when, and by whom).