the.com/continuum

A scale so smooth it refuses to give you the dignity of a clear line.

means A continuous sequence in which adjacent points are nearly identical, even though the far ends can be wildly different.

from From Latin continuum, 'a connected whole,' the neuter form of continuus ('hanging together, uninterrupted') — itself built from continere, 'to hold together' (com- 'together' + tenere 'to hold'). Mathematicians and physicists borrowed it whole-cloth from Latin to describe unbroken ranges of values, and it kept that same sense of things holding together, however gradually, into everyday use.

math origin
Describes infinite points with no gaps between them
famous puzzle
Continuum hypothesis asks about sizes of infinity itself
everyday use
Gray areas rebranded to sound more academic
key trait
Any two points always hide another point between them
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