alt Hacker NewsIt is true that graphs communicate very well. But they do come from text... And in the end we need to be able to describe what we see in them in text.
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No, you do not need to, and will not generally be able to, describe everything that a graph conveys in text. Graphs can give you an intuitive understanding of the data that text would not be able to, simply by virtue of using other parts of the brain and requiring less short term memory. If a graph can be replaced with 5 pages of text, that doesn't mean that you get the same information from both - you're likely much more able to keep one image in your short term memory than 5 pages of text.
But they are multiple different "views" into data, and I would posit that a textual view of data is no different than a graphical view, no? If you import data from a parquet file, you go straight from numbers to graphs, so I disagree that it comes from text. Both graphs and text come from information. Circles on surveys, Arduino temperature readings, counter clickers when doing surveys. Those are not just text.
I think you're reaching. Justifying the answer you want rather than the answer that is.
No, graphs do not need come from text. I've frequently hand generated graphs as my means of recording experimental output. This is a common method when high precision is not needed (because your uncertainty level is the size of your markers). But that's true for graphs in general anyways.
Importantly, graphs are better at conveying the relationship between data, rather than information about a single point. (something something - Poincaré ;)
Besides, plots aren't the only types of graphs. Try network graphs.
Besides, graphs aren't the only visual communication of data.
I'll give you an even more obvious one: CAD. Sure, you can do that in text... but it takes much more room to do and magnitudes more time to interpret. So much so that everyone is going to retranslate it into a picture. Hell, I'll draw on paper before even pulling up the software and that's not uncommon.