ELI5; When you close your eyes at night you see all these colours, and when you press your eyes they become more and more vilbrant the harder you push. What are those and where do they come from?
In: Biology
Imagine the sensors in your eyes are like a giant keyboard and when you open your eyes and let the light in its like a master composer playing the keys by pressing the right one for just about right time and pressure.
When you close your eyes and rub them you see a toddler jumping over the keyboard you can still here all the notes (colors) but the composition does not make sense.
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