1) Broad diversification as the default
Broad diversification aims to reduce the damage from any single company, sector, or country disappointing. In practice, this means owning a wide set of businesses across industries and regions, and balancing growth assets (equities) with stabilizers where appropriate. Diversification does not prevent losses, but it can reduce the risk that a single mistake or headline dominates your results. A diversified baseline is often the simplest way to keep a plan intact when markets are volatile.
A practical approach is to start with a broad equity allocation that matches your horizon, then decide whether you need an additional stabilizing allocation for near-term spending or emotional comfort. The tradeoff is that diversification can feel slow during fads, and it can lag concentrated winners. The benefit is that it lowers the chance of catastrophic outcomes from concentration and improves the odds that your results resemble the market rather than a single bet.
How to apply
Write an asset mix and a rule for when you will change it.
Main risk
Still exposed to market-wide drawdowns and long recovery periods.