I feel like passive Boglehead rules worked best because it existed in the period when America stacked the deck to make it where stocks always went up and everyo

I feel like passive Boglehead rules worked best because it existed in the period when America stacked the deck to make it where stocks always went up and everyone always wanted dollars. America left the gold standard in 1971 and Bogle introduced index fund investing in 1976. I wonder how successful it would have been without lots of unbacked dollars available for decades. I think we are reaching the end of that era. I guess we shall see.