Earlier quoted context omitted.
Interest rates have been all over the map over the last 60 years, including double digits in the 80s, and yet low-cost index funds have been a reliable driver of wealth that entire time.
https://fred.stlouisfed.org/series/DGS10/ Zoom out to "Max" to get the full 60 year history. You can clearly see a full four decades of declining interest rates running from 1981-2020. That very neatly corresponds with the amazing stock market growth most HN readers, myself included, have grown up with. The stock market growth is neatly correlated with declining interest rates, not with the actual value of the intere…
On the other hand, I may be missing something. Ray Dalio's All Weather Portfolio is 55% bonds, and it's supposed to be safe-ish for any market conditions.