Nobody can establish who first used the phrase 'evidence-based investing', and no regulator defines it. Robin Powell, who was given the name by Larry Swedroe in 2015 and is sometimes wrongly credited with coining it, sets out what it actually means: four tests of what counts as evidence, borrowed from a medical parallel that hit the same crisis twelve years ago. Including where he goes further than a global tracker, and why he holds that position less firmly than he used to.
Consumer tests found ChatGPT scoring just 64% accuracy on financial questions. Accountants report clients losing real money. This Deep Dive examines what AI investment advice actually gets wrong — and what to do instead.
Robin Powell
Jan 2910 min read
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