He does. He says "forever" not 25 years. (Research has shown that 4% drawdown of your wealth every year combined with an investment into stocks (assets with 3.

He does. He says "forever" not 25 years. (Research has shown that 4% drawdown of your wealth every year combined with an investment into stocks (assets with 3.5-4% post-inflation return) will generally preserve your capital stock - and even in the worst cases won't completely erode it. 100%/4% = 25