I don't remember the context, but a few days ago Sophia listed off a bunch of colors and then said, "Daddy, all of those colors are my favorite colors. But not white. White's my empty color."
She said that about white another time the next day, completely out of any context of color. She was just describing something and said that it was white and that white was an empty color or her empty color or something like that. I didn't get down the exact way she put it.
If she means it something like the empty set, she may be right (at least if she's talking about colored objects; she's exactly wrong if she applies it to light, but a three-year-old isn't going to do that). I'm curious where she might have gotten it from, though, or how she came that conclusion. Maybe it's because white crayons do nothing noticeable on white paper. But why empty? Why associate it with an empty container? It doesn't seem the most obvious metaphor for a three-year-old to use without it coming from someone else.