Dmitri Mehlhorn has created a fictional world to game out constitutional collapse.

Post-modern portfolio theory uses downside risk to refine portfolio optimization. Learn how PMPT offers an alternative to modern portfolio theory for risk-adjusted returns.

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January 23, 2026 • A self-described "little farm girl" in the Jim Crow Era, Gladys West's complex and pioneering work for the U.S. Navy helped to improve billions of lives — and keep us from getting ...