> How is it not visual? Perhaps it is. But then you should be able to answer: where is that visualization on disk? And I don't mean the encoding thereof, I mea

> How is it not visual? Perhaps it is. But then you should be able to answer: where is that visualization on disk? And I don't mean the encoding thereof, I mean the actual 2D picture you could glance at and immediately recognize. Not rendered with some image viewing program, but literally looking at the disk/SSD (perhaps under a microscope, if necessary) -- that should be doable, because you're claiming that schemas are inherently visual, and certainly that schema exists on disk somewhere, which in turn implies that those boxes and arrows should be visible on the storage medium. > Boxes with arrows are clearly visual. You've changed the topic -- no one is saying that boxes and arrows are not clearly visual. Where are those boxes and arrows sketched into an SSD or in memory? Or, would you assert that a database is schema-less until someone draws up a diagram? The boxes and arrows image representation of a schema is not the schema itself. See also: https://en.wikipedia.org/wiki/Map%E2%80%93territory_relation https://en.wikipedia.org/wiki/Map%E2%80%93territory_relation