Yep. The visualization tricks in this article are for building understanding of basic ideas in probability theory and information theory.<p>In most real situations, they wouldn&#x27;t be very practical. As you note, the core trick in this essay only works for 2 or 3 variables, assumes they&#x27;re discrete, and doesn&#x27;t scale to the variables having lots of values or really improbable values.<p>There are visualization techniques which are useful in the real world, at least some of the time -- a lot of my blog explores this in the context of neural networks -- but that wasn&#x27;t my goal in this article.