Can you explain why? Because I still don't get the point the article is trying to make. To clarify what I do understand: so you have the variable, like height,

Can you explain why? Because I still don't get the point the article is trying to make. To clarify what I do understand: so you have the variable, like height, and all its possible values along with their probabilities (that's the distribution, if I understand things right). The distribution represents a big part of what the variable is, although I realise the variable maybe has other attributes too (none comes to mind right now though).