It’s not totally accurate, but it gives a pretty good intuition that an average middle school student could easily grasp. Think about it like PCA. Do you lose

It’s not totally accurate, but it gives a pretty good intuition that an average middle school student could easily grasp. Think about it like PCA. Do you lose some information? Yes. But you can do a lot with only the first few principle components (i.e. basic concepts). Things like events, sets, measures, etc add important details like why you have to divide the selected row / column by its sum to get a true conditional distribution; how many dimensions the array should have; constraints, properties, and relationships of subarrays, etc. But that all becomes a lot easier to understand once you have the basic intuition. And once you get good enough you can start to let go of the grounding in arrays and ground in other concepts and then think about it more abstractly.