From The New York Times: When engaged in what looks like child’s play, preschoolers are actually behaving like scientists, according to a new report in the journal Science: forming hypotheses, running experiments, calculating probabilities and deciphering causal relationships about the world. The report’s author, Alison Gopnik, a psychologist at the University of California, Berkeley, says she based it on more than 10 years’ worth of research and studies, including some of her own.