Dividing by 1023 or 1024? The final verdict on analogRead

zoomx:
This way the last segment has not the same length of the others, for sure is longer, and you don't know how is long because you can get the same value, 1023, also for 5.5V, maybe more, maybe less.
In other words 1023 mean a value that is bigger than Vref-Vref/1024 (not Vref!) but you don't know how many is bigger.

Same thing goes for > 5V when dividing by 1024. What's your point worth making?

When you start at zero what could be 1/2 you end at Vref - Vref/1024 rather than Vref = Vref/2048 which is More Real.

The hardware does this in 10 stages, not 1024.

Is it worse to play in shadows or to act like there are none?