Sometimes, it's all about the casting.
Movies are not about moving, but about whether to move.
A lot of first novels are written long before they're actually put down on paper.
That's what fantasies are for, to help us imagine that things are better than they are.
One of the weapons Marvel used in its climb to comic-book dominance was a willingness to invent new characters at a dizzying speed. There are so many Marvel universes, indeed, that some superheroes do not even exist in one another's worlds, preventing gridlock.
We feel the same emotions for our ideas as we do for the real world, which is why we can cry while reading a book, or fall in love with movie stars.