Metaphor, he's comparing darts to segregation.
The
discovery that the narrator makes by dissecting his brain is learning
that his thoughts require a constant flow of pressurized air because brain activity slows due to low air pressure.
"Exhalation"<span> <span>is a </span></span>science
fiction short
story<span> <span>by </span></span>Ted
Chiang. <span>The story is </span>epistolary<span> <span>in nature, taking the form of a scientist's
journal entry.<span> </span></span></span>
First person point of view, and an unreliable narrator. Having it like that means he can go into the depth of the phycology of the character
I can’t answer because I can’t see the story like this tho
Usually conjunctions are not a good way to start a sentence; such as 'and' and 'but'...