I really don’t understand blog statistics - and the more confusing it gets, the more I become fixated by them!

No two sites seem to measure them the same way - or if they do then they end up with different answers in any case.  Why is it so difficult to measure how many people actually visit a certain webpage within a given timeframe?

It’s not exactly imperative that I know, and I didn’t start this blog in the hope that millions of people would hang on my every word but it’s nice to know you aren’t here just talking to yourself!