Following up on the puzzle metaphor: You look for more pieces, you figure out where they fit, you set aside the ones that turn out to be from a different puzzle, and you get a better idea of what the picture is as you go along.

Following up on the puzzle metaphor: You look for more pieces, you figure out where they fit, you set aside the ones that turn out to be from a different puzzle, and you get a better idea of what the picture is as you go along.