I know math states that a number line is one dimension but I never understood how it exists outside the math concept.
In: Biology
There is no such thing as a one dimensional object in “reality”. It is a mathematical abstraction. The simplest analogy of a one dimensional mathematical object is the number line. This is a way to visualize an abstract idea or concept.
In reality, there is nothing in the universe that is one dimensional. We live in a universe that has 3 spatial dimensions and 1 time dimension and, as far as we know, everything exists within this framework. This is physics not mathematics.
Physicists use mathematics to describe reality but that does not work in reverse. It isn’t usually possible to actualize abstract math ideas with “real” physical objects. For example, a perfect circle exists as mathematical idea but a perfect circle cannot be realized in the universe.
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