When I drove home from work a couple of days ago, I noticed a policeman flagging down precisely every tenth car in the other lane and directing the drivers towards a lay-by. He was in uniform, wearing hi-vis gear and his government-issued Walther, so non-compliance was clearly not an issue. The scene was completed by a large billboard, stating that this was no ordinary vehicle spotcheck but rather a road use survey. I badly want these guys on our team.
Samuel Stouffer, survey data, and spirits from the deep
Empiricism: a slippery slope perhaps, but also one hell of a ride