Earlier quoted context omitted.
There are multiple dimensions https://getgoally.com/blog/autism-spectrum-wheel Along with many comorbidities (adhd, ocd, depression, etc) which are more likely but not requisite This leads to the saying "if you've met one person with autism, you've met one person with autism"
Then the spectrum would refer to the magnitude of any vector in multidimensional “autism space”.
Two complex numbers can have the same magnitude & be very far apart. Assuming we stick to the positive/positive quadrant it's not so bad. This metaphor (which, the spectrum itself is a metaphor, making this a metaphor of a metaphor) is to a 2d space tho, complex numbers are much more comparable based on magnitude as a result