That is not hourly earnings. Americans are working longer than they did in 1970.
On top of that even if we take your link at face value that's a 0.35% growth per year. The medieval warm period had faster wage growth.
And let’s not forget that single income households converted to dual income households, from 47% to 66% of married couples.
https://taxfoundation.org/data/all/federal/america-has-becom...
(Not my favorite think tank but they have a nice chart.)
> That is not hourly earnings
Hourly earnings (nominal) have grown at 3.2% per year between 2006 and 2025 [1]. Inflation in that interval was 2.7% [2].
> Americans are working longer than they did in 1970
Source? These data show hours worked are down [3].
[1] https://fred.stlouisfed.org/series/CES0500000003
[2] https://data.bls.gov/cgi-bin/cpicalc.pl?cost1=1&year1=200601...
[3] https://fred.stlouisfed.org/graph/?g=18H2H