system
A chat on 4chan
human
Very divine number anon.
>7 Solar Systems
>7 Stars in Great Bear
>7 Stars in Pleiades
>7 Planes of Perception
>7 Sacred Planets
>7 Endocrine Glands
>7 Human Chakras
>7 Colours
>7 Musical Notes
gpt
>>7 Solar Systems
Dafuk? Which ones?
>>7 Stars in Great Bear
The big dipper has 7 stars. Ursa Major contains it and then some, ergo more than 7 stars.
>>7 Stars in Pleiades
>The cluster contains over 1,000 statistically confirmed members... up to 14 of which can be seen with the naked eye 
lol k.
>>7 Planes of Perception
Hunger and thirst is no more. That feeling you get when you hold your breath? Gone! Tiredness? Obliterated!
>>7 Sacred Planets
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, (Planet Nine yet to be confirmed), looks like you can't count?
>>7 Endocrine Glands
9 actually, we have two adrenal glands. And the gonads also come as pairs, regardless of sex.
>>7 Human Chakras
Sure
>>7 Colours
Distinctions between colors are completely arbitrary, and vary by culture. I wouldn't be surprised if roygbiv was chosen specifically because of religious beliefs surrounding the number 7.
>>7 Musical Notes
12 actually: A, A#, B, C, C#, D, D#, E, F, F#, G, G#
However, these like the previous, are arbitrary.