Goal specificity affects outcomes significantly through several mechanisms. Specific goals with time horizons determine appropriate risk levels, which affects both returns and behavioral stability during volatility. They also create measurable benchmarks that tell you whether your approach is working rather than just guessing. Psychologically, specific goals provide motivation during periods when markets are flat or declining. The difference between investing to grow wealth generally and investing to fund a specific objective in a defined timeframe changes nearly every subsequent decision you'll make about the money.