Can you define what is 'normal' and 'abnormal'? Can you identify a 'hard fixed' line dividing the two? Do you deny that everyone is on the 'spectrum'?

I know I'm not normal in a lot of ways but don't feel there is any sort of 'hard fixed' line distinguishing 'normal' (Neuro-typical) from 'abnormal' (Neuro-divergent). I fully believe that every human is somewhere on a 'spectrum' with 'normal' being the region in the middle of a bell curve and 'abnormal' being flexible regions at either end (what's sometimes referred to by psychologists as 'low functioning' and 'high functioning').