Afterlife, I'd be happy if it were true.....

[Fake Messiah]

I don't think there is a conscious afterlife (although your genes could live on) therefore I would like this world to be "paradise" as much as it can be. One of the steps toward it would be cheap energy. For starters just imagine if we had such low priced non polluting electricity that we could create methanol artificially that it's practically free. Cars could drive themselves and nobody would own a car but rather order one when you need it. You could also water deserts and arid places to grow cheap food with almost free gas there wouldn't be hunger anywhere so you could travel and live where ever you want without the fear that you're a refuge looking to overpopulate some ideally populated country. Since we are very soon looking into even bigger refugee migrations, like the ones from India making this Syrian refugee wave look like a drop in the see, because people in India have practically dried out their drinking water reservoirs.
Also to have enough energy to melt garbage on molecular level and turn it into other elements to make mining obsolete. That would be the world worth striving for if you don't believe in afterlife and want to live your life as pleasant as you can in the world that is so breathtakingly beautiful.
But of course one of the problems today is that people are totally obsessed with post-apocalypse. Starting with the bloody movies which are one dystopia after another, as if establishment is telling us to accept fucked up world. And it's present everywhere even in internet artists. Every SF internet illustrator I bump into online draws mountains of garbage, people covered with cancers, destroyed landscapes... I mean what has happened to humanity that it bowed down and accepted it's ending without even trying to fix things? The thing that I heard from one scientists after another is that we can fix thing with science if we jump on it and invest more.