I think you are conflating the notion that, at a given time slice, a majority of the popular sentiment about the future may not have always been positive, with your own opinions of modern engineering.
For vast swaths of human mind, popular opinion tended to see the future as bleak and the past as filled with greater men, accomplishments, etc - the good days are behind us. Post industrial revolution thinking and adoption of science has mostly changed that opinion to hope - the good days are ahead of us.
As for people who can optimize code like back in the day: I am not sure where you work, but I bet if you look at the best engineers in the best tech companies today (google/ Facebook / Netflix / amazon / Uber / palantir) you’ll find a lot to be impressed with.
For vast swaths of human mind, popular opinion tended to see the future as bleak and the past as filled with greater men, accomplishments, etc - the good days are behind us. Post industrial revolution thinking and adoption of science has mostly changed that opinion to hope - the good days are ahead of us.
As for people who can optimize code like back in the day: I am not sure where you work, but I bet if you look at the best engineers in the best tech companies today (google/ Facebook / Netflix / amazon / Uber / palantir) you’ll find a lot to be impressed with.