[nabla9]

> What makes you think that the next 10 years will generate smaller return?

Look at the link I provided.

If you have goose that lays golden egg worth $1000 every year, and the price of the goose goes from $20,000 to $30,000, how does the ROI (return of investment) change?

Valuation of thing relative to valuation it provides is important. All the factor of economic growth in OECD countries are declining so you should expect lower ROI (once the effect from increasing leverage stops).

https://institutional.vanguard.com/VGApp/iip/site/institutio...