Economic weirdtopia . . .after the Ultimate Crash of 2105, the best ems got together and created a new universal atomic currency, based on not just on gold, but on reserves of quark-gluon plasma made from gold nuclei in deference to mankind's historical preferences.
Sexual weirdtopia. . .since death is over through nanotechology or uploading into perfect android bodies you can get on a 3-year-lease, there's no need for birth. If ems want to create a new being from themselves, they just copy different brain modules from the catalog and create the perfect "children" who share all the traits & values they want them to have.
Technological weirdtopia. . .once we found gravitational waves, we decided few things were as beautiful as watching black hole spin-flips. How majestic to see the jets reverse - like Niagara Falls but much much better. They become the new lunar eclipses. The AIs decide for retro-aesthetic reasons to resort to communicating only via gorgeously polished and highly decorated ebony "punch cards."
Cognitive weirdtopia. . .since unlimited thinking power is available via copy & merge for ems, or simple access to AIs, thought has become devalued. Who wants it when it isn't rare? Real physical sensation becomes more highly valued than ever, and people pile hop into giant "cuddle piles" with numerous artificial cats just to feel the warmth.
Governmental weirdtopia. . .we discover the aliens learned long ago how to encode their whole being into several kinds of waveforms. Thus the first message SETI finds is actually the ambassador itself. It informs us of the spectral rules governing the bands given to various alliances and tells us where to find the repeaters. The cosmos is governed by a universal FCC.
Utopia and Dystopia have something in common: they both confirm the moral sensibilities you started with. Whether the world is a libertarian utopia of the non-initiation of violence and everyone free to start their own business, or a hellish dystopia of government regulation and intrusion—you might like to find yourself in the first, and hate to find yourself in the second; but either way you nod and say, "Guess I was right all along."
So as an exercise in creativity, try writing them down side by side: Utopia, Dystopia, and Weirdtopia. The zig, the zag and the zog.
I'll start off with a worked example for public understanding of science:
Disclaimer 1: Not every sensibility we have is necessarily wrong. Originality is a goal of literature, not science; sometimes it's better to be right than to be new. But there are also such things as cached thoughts. At least in my own case, it turned out that trying to invent a world that went outside my pre-existing sensibilities, did me a world of good.
Disclaimer 2: This method is not universal: Not all interesting ideas fit this mold, and not all ideas that fit this mold are good ones. Still, it seems like an interesting technique.
If you're trying to write science fiction (where originality is a legitimate goal), then you can write down anything nonobvious for Weirdtopia, and you're done.
If you're trying to do Fun Theory, you have to come up with a Weirdtopia that's at least arguably-better than Utopia. This is harder but also directs you to more interesting regions of the answer space.
If you can make all your answers coherent with each other, you'll have quite a story setting on your hands. (Hope you know how to handle characterization, dialogue, description, conflict, and all that other stuff.)
Here's some partially completed challenges, where I wrote down a Utopia and a Dystopia (according to the moral sensibilities I started with before I did this exercise), but inventing a (better) Weirdtopia is left to the reader.
Economic...
Sexual...
Governmental...
Technological...
Cognitive...