Utopia/Logical Weirdtopia

There's an infinite number of universes that anyone can teleport between. Thanks to the infinite hotel paradox, each person in each universe find their own personal utopia.

Topological Weirdtopia

We live in a five-dimensional world with a huge curvature. There's billions of people within walking distance. Everyone has a built-in GPS, because otherwise you'd never find your way home.

Even weirder: After we're uploaded, we start just using geometry in games. You get somewhere by willing yourself to be there, and your perception of it doesn't include geometry.

Government Slightly Weirdtopia:

The government is a random sample of the population. I suspect it wouldn't actually be that different, but someone ought to try it.

Government Weirdtopia:

The government is a hive mind. It gives laws using IP over Demographics. People protest against it including the death rate, but it argues that it can't stop that any more than you can stop using certain brain cells.

Economic Weirdtopia:

Money grows on genetically modified spiders, which you have to go around and kill for money. You can buy stuff from other people, in which case they don't have to kill spiders, but mostly you get stuff from NPCs, who just destroy the money. You can also sell stuff to them, in which case they produce money and destroy the item. If you die hunting money spiders, you are reincarnated at the nearest graveyard.

Another:

Everything is free except advertising. You get the money to advertise by putting ads on your products.

Yet Another:

A sort of quantum teleportation of happiness is discovered. It's possible to buy someone else's happiness, and no matter how much you buy, you get the full effect. Billionaires are ecstatic beyond comprehension.

Cognitive Weird... event:

At first luddites choose not to be uploaded, but eventually they're forced to by the eminent domain laws. If they're not going to use that body mass to think, they'd better give it to someone who will.

Cognitive Weirdtopia:

The world is turned into a giant computer that makes the simplest possible extremely happy being. Everyone's extremely happy, but they can't think beyond that.

Another one:

In order to prevent people from modifying themselves so that they can't or don't want to modify themselves back, they're allowed to modify one other person, but not themselves.