Why is the sky blue?

My friend asked her 8-year-old son why was the sky blue. She actually meant the question to be a research project that he could embark on, but little did she expect his reply.

"The sky is blue, the same colour as the sea, because the sea and sky were originally the same [firmament], and God drew a line across the middle and the bottom half was the sea and the top half was the sky. So they're both blue."

My friend and I stared at the boy in amazement. I thought it was a very reasonable and brilliant explanation of the Bible, and something I could never have come up with.

The brilliance of kids nowadays. I wish I was born in the 00s instead of the 70s. Damn!