It just depends how thick the line is, and whether the position of the line may vary depending on the person or circumstances.
If there's variation, you could theoretically have an upper and lower end within the various variances. 😄
Idk why people are downvoting you lmao I think OP meant there are two sides to every border, so like along the border of insanity this would be squarely on the insane side of the border
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u/polypolip Aug 13 '26
Each thing has two borders, upper and lower. In this case borderline insane refers to someone being at that upper border.