Try lacing your hands together,” Ms. Markova says. “You habitually do it one way. Now try doing it with the other thumb on top. Feels awkward, doesn’t it? That’s the valuable moment we call confusion, when we fuse the old with the new.

Can You Become a Creature of New Habits? – New York Times

Interestingly, this is the first place I’ve seen the Japanese concept kaizen used outside of a business operations context.