In his latest book, How to Change Your Mind, Michael Pollan writes of his own consciousness-expanding experiments with psychedelic drugs like LSD and psilocybin, and he makes the case for why shaking up the brain’s old habits could be therapeutic for people facing addiction, depression, or death. Pollan and psychedelics researcher Robin Carhart-Harris discuss the neuroscience of consciousness, and how psychedelic drugs may alter the algorithms and habits our brains use to make sense of the world. 

This week, science students gathered in Pittsburgh for the finals of the Intel International Science and Engineering Fair, a competition founded by the Society for Science and the Public. Nearly 2,000 students from 75 countries came to present their projects. Two of the finalists share their projects: Everett Kroll discusses how he created and tested an affordable 3D-printed prosthetic foot, while Alyssa Rawinski explains how she studied the feasibility of using mealworms to recycle plastics. 

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