Marci has connected increases in concordances to increases in perceived empathy: the more concordances occur, the closer the two people feel. What’s more, the changes in closeness happen not gradually but all at once. “There’s often one moment where it happens,” he says. “There’s an accelerated change to the relationship that happens when you’re able to really listen, to be incredibly present with the person. It’s like a breakthrough—‘We were like this, but now we’re going to interact in a new way, and we both understand that it’s happened.’
