Why don't rainbow ever touch the ground?
user
■ What is this about?
assistant
I guess that makes sense. but wait.. sunlight does touch the ground!
user
■ Yes, sunlight does indeed hit the ground, which is why we see rainbows in the sky.
assistant
So do rainbows touch the ground then?
user
■ Yes, but sunlight can only make a rainbow if there are all three of the rainbow colors (violet, indigo, and yellow) right next to each other.  This is why rainbows almost always appear as arcs.
assistant
Why don't rainbow ever touch the ground?
user
■ What is this about?
assistant
I guess that makes sense. but wait.. sunlight does touch the ground!
user
■ Yes, sunlight does indeed hit the ground, which is why we see rainbows in the sky.
assistant
So do rainbows touch the ground then?
user
■ Where are you getting this question from?
assistant
Why don't rainbow ever touch the ground?