Imagine a world like ours, except that it’s fish that became the most intelligent creature. Somehow they learned to harness tools and technology, and built a fish civilization as advanced as our own.

In this world, fish travel between sea, air, and land with ease, using little hover vehicles. Their technology allows them to have fish cities, complex fish politics and fish economies, fish entertainment, fish fashion, fish philosophy, and fish science.

Modern fish are able to live lives their premodern fish ancestors couldn’t have imagined. They can be accountants and bus drivers and FR managers. They can even live in places where there’s barely any water — they just import food and water from the ocean, or ocean-like farms.

It’s been millennia since fish had to subsist by living in the open ocean, dodging sharks while cruising for food. Entire fish empires have risen and fallen since that time, and now only a few rare hobbyists, like the guy on the TV show Survivorfish, have any ability to survive on their own in the wild.