Story helps gut:

everything around you that you call life was made up by people who were no smarter than you. And you can change it, you can influence it, you can build your own things that other people can use. That's the most important thing: to shake off this erroneous notion that life is there and you're just going to live in it. Versus embrace it, change it,

A World asks us to believe in its inventions and contradictions and to be ‘safe’ from our disbelief. In return, a World eats back at Reality, arms us with perspective, furnishes us with meaning, and gives us some measure of agency to expressively deal with new surprises from Reality.

a World can express itself in anything. This is its freedom. But this freedom doesn’t mean freedom from containers. It means freedom to choose a container.

People don’t just want the spark of a World, they expect to discover a World fully formed, inhabit its complexities, believe in its potentiality, and continue to generate meaning from it.

A World’s Evidence Usage approximates how much people believe in a World enough to perpetuate its expression. Evidence Usage drops when the expressions of a World go unused.

To sustain thinking and acting in service of a World, the Emissary requires a deep reward: the reward of creating something far stranger than just a little game, but a living sentient World that can be at home in the unknowns of Reality. A World that can house other people, possess them with its spirit, and let them levitate a bit higher in life.

WHAT IS YOUR WORLD ABOUT? The simple answer: everything that interests you AND that you could imagine persuading a stranger to become interested in too. By stranger, I mean an archetypal person who exists outside your immediate social reality, someone you must relate to on a more shared fundamental level. The stranger could be the entire human race

A future you can believe in is one that sustains some combo of special conditions that you find meaningful and want to give energy to its continued existence.