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John Horgan · 10 Oct 2026

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  1. Most of the excitement about optogenetics is based on experiments on mice, monkeys and other animals. This research provides limited insights--at best--into complex human illnesses such as depression, bipolar disorder and schizophrenia.
  2. But optogenetics alters the cells and circuits it seeks to study so much that experimental results might not apply to unaltered tissue.
  3. Far from being the solution to our healthcare woes, technology is part of the problem. High-tech tests and treatments contribute to medicine's high costs and often have dubious benefits.

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