https://www.insidescience.org/news/brain-seven-magic-number https://www.insidescience.org/news/brain-seven-magic-number For those unaware the number 7 seems to

https://www.insidescience.org/news/brain-seven-magic-number https://www.insidescience.org/news/brain-seven-magic-number For those unaware the number 7 seems to have a special place in the human brain as it's the number of distinct things most humans can hold in their brain at once before needing abstractions or other devices to keep track of the information. It's also the point at which our brains seem to switch from "a few" to "many" and because it's prime it's the highest a few number that we don't mentally split into groups of other numbers.