ELI5: Explain Like I'm 5

Explanatory gap

The explanatory gap is a problem in understanding the connection between how things work in nature (that is, scientifically) and how we experience and understand the world around us. It's like two puzzles, where one is about how things work on the inside, and the other is about how things look and feel on the outside. The explanatory gap is when we can't figure out how the two puzzles fit together. We know how each one works, but we don't understand the link between them.