I heard that Grant Cardone has a wealth accumulation secret called the 40/40/20 rule, which is completely the opposite of the common 50/30/20.

Core logic: 40% for taxes, 40% for savings, and 20% for living expenses. It's all about tightly controlling living expenses and using the bulk for investing in income-generating assets.

Cardone is quite harsh - if you earn $4000 a month, you should invest $1600 and live on the remaining $2400. It sounds crazy, right? But his logic is: by forcing yourself to have less money to spend, you are compelled to earn more. After ten years, just from the initial investment of $1600/month, you could accumulate $190,000, not to mention that your income will increase?

This method was used by the wealthy as early as 1929, verified by history. The core idea is: don't let a lifestyle inflation consume your growth, exchange discipline for wealth.

Has anyone tried it? I feel like the hardest part for ordinary workers is the psychological barrier — can you really live on 20% of your income?