Modern portfolio theory's only real value is to make investors feel emotionally comfortable with a smooth ride; it adds no actual value to returns and is purely a psychological comfort mechanism.

factualpending

Speaker

Robert Hagstrom

Evidence Quote

it adds no value, right? Its only value is to make you feel good

Source

Warren Buffett Published His Whole Playbook | Robert Hagstrom on Why Only One Tenth of 1% Uses ItExcess Returns
Created: 8/12/2026, 6:12:15 PM

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