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Steven Lubka comments that a significant portion of financial writing involves calculating historical averages and asserting that markets or variables will eventually revert to those means.
He also observes that much research can be summarized as the belief in mean reversion, suggesting this perspective underlies many analyses.
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Lubka has previously examined concentration in equity markets, noting that 80 percent of displayed market value comes from Mag7 market caps. He also argued that AI could drive a larger speculative bubble than the Dot Com era. Both views reflect his focus on analyzing the factors behind headline market numbers.