Completely based on the lens through which you are viewing it. I myself am American and have seen the quality of life for the average citizen declining in my life time. If I wasn't a part of the new middle class provided by technology, my children would have a worse life than me, combine that with the recidivism displayed by our judiciary recently and some could definitely argue we are declining. But with a user name like that, you already know all that. You might say our gdp and other metrics still show us as a giant on the world stage, I'm sure there are other metrics we can crow about, Yet it feels like little of that is trickling down to our citizens.

What year would you suggest time-travelling back to in order to enjoy a higher quality of life?