It is commonly the case with technologies that you can get the best insight about how they work by watching them fail.

A few dud universes can really clutter up your basement.

The difference between ignorant and educated people is that the latter know more facts. But that has nothing to do with whether they are stupid or intelligent.

Whenever I get distracted or bored, my eyes wander over to that chalkboard and I read the words. Some of them grow on me, and others annoy me. I attack the latter with eraser and chalk, and keep nudging at them until I like the way they look and sound. Others never make the cut at all and simply get erased. Perhaps one day I will sell these on eBay to RPG players who need names for characters or alien races.

Early on, I settled on the first-person strategy as a way to deal with exposition and world-description issues. As long as the book is, it could have been far longer had I gone with an omniscient third-person narrator, or multiple point-of-view characters, since either of those would have enabled me to impart much more detailed information about the history and geography of the world.

Like any place in Reality, the Street is subject to development. Developers can build their own small streets feeding off of the main one. They can build buildings, parks, signs, as well as things that do not exist in Reality, such as vast hovering overhead light shows and special neighborhoods where the rules of three-dimensional spacetime are ignored.

A species has to become pretty intellectually advanced in order to grasp the concept of death in the abstract, and to dream up the idea of immortality. Long before that (in evolutionary terms) all species with brains have the survival instinct in some form. So, I am just saying that there are many existent proofs of species that have one, but not the other.