"The stock is down 40%, it has to come back." You've heard this. You may have said it. It sounds sophisticated — it invokes statistical law.

Most investors spend their time trying to pick the funds that will beat the market. The uncomfortable truth is that after costs, most of the

The financial independence / retire early movement is built on genuinely sound math. Save aggressively, invest in lowcost index funds, spend

Two portfolios both returned 15% last year. Identical result on paper. But Portfolio A drifted there steadily, while Portfolio B lurched fro