That’s interesting. I hadn’t really made the connection between those two stories, but I see what you mean. I wouldn’t say that escalation is an essential part of storytelling as a whole, but I think there is a specific mode of science fiction storytelling in which extrapolation is a key part: taking an idea as far as it will go, trying to imagine what comes next, to the limit of your imagination.
Hearing this definition of science fiction makes me want to write science fiction! I love this concept of taking it as far as it will go.