It has enabled them to tighten their collective controls by pooling information in a single computer and by getting their customs police to co-operate.

ECONOMIST: Immigration

Dr Yokota (and also Drs Lundeen and Steinberg) managed to observe them without looking, as it were, by not gathering enough information from any one interaction to draw a conclusion, and then pooling these partial results so that the total became meaningful.

ECONOMIST: Physics and philosophy