[pas]

Correlation, causation.

Smart phones and PCs both coincide with big shifts in global politics, the post 2001 War on Terror, Operation Iraqi/Afghan Freedom, etc. Trillions spent on insurgency control, that could have been spent a lot more effectively.

All the while the middle class shrinks. (David Autor's 'Why there are still jobs?' paper is open access and has striking graphs that show just how much happened/happening.)

Globalisation lifted hundreds of millions out of poverty, while the financial benefits of this economic optimization were not distributed back to those who lost their old socioeconomic status. (They only got the lower prices, but that's not much considering most of those people affected were not living in a distortion-free "free market", they had no idea what to do, they were not used to chasing new skills-in-demand, not prepared to relocate, etc.)

That said comparing healthcare outcomes, civil rights to the 70s is worthwhile, and if you think it was better then, that is mighty strange.