Suppose you were to visit a perfectly symmetric, smallish, non-spinning black hole. What would happen? Right away, you would need a new nickname – something like Stretch or the Spaghetti Kid. The pull from the black hole would force your body into a long, skinny, stringy shape. If you were going in feet first, your feet would stretch out the most. For a moment, they might look like droopy wet socks. Not that you would notice any of this. By the time your toes could register "ouch” in your brain, your brain would not be working. This is the one time when stretching your mind might be a bad idea.

What if the black hole were lumpy? Instead of getting a nice, smooth stretch, you’d be pushed and pulled in changing directions, like human dough in a wrestling match with a pretzel maker. (The pretzel maker wins.)

Which writing technique does the author use?

scientific data that explains the function of a black hole
facts to compare black holes
language that describes the impact of a black hole
statistics to contrast black holes