Do we all see colors the same?

Look at this.

It's green. We all learned it in kindergarten and/or pre-k.

And this,


red.


How do we know how we see it? It's weird but HOW????????????  I want to figure out if you see red how I do. The first thing we do to describe anything is colors. Do we see them all the same? How would we figure it out? DOES ANYONE KNOW??????????????????????????????????????????????
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