Just as our visual system strains to see the vase and the two faces at once, we struggle to conceive of a motion that has a dual motivation: to put and to fetch. A paper by Van de Cruys, Wagemans and ...
Pulling a rabbit from a top hat. Teleporting from one cage to another. Finding a coin behind a five-year-old’s ear. Magic has long inspired a sense of awe and wonder, but one portion of the population ...