Recently came across what's claimed to be the most sound investment strategy

Harry Browne's "Permanent Portfolio," which divides funds equally into four parts
25% stocks: capture economic growth (such as S&P 500 or Asia-Pacific large-cap)
25% gold: hedge against inflation and geopolitical turmoil (the recent safe-haven star)
25% long-term bonds: protect against deflation and economic recession
25% cash/short-term debt: address liquidity crises, maintain purchasing power
Every year, sell what has gained the most, rebalance by adding to what has fallen the hardest, and return to 25/25/25/25.
According to this investment portfolio, over several decades, there have only been four instances of extreme situations resulting in losses, with long-term annualized returns exceeding 8% 🤔🤔🤔
Although this is quite different from the previous "investment genius" with 30% monthly returns.
But this still looks fairly sound, and when I have the money, I'm planning to follow this strategy for retirement 😌