In romance novels, opposites supposedly attract. The polar opposite is true in politics. Disagreements are a fundamental part of politics, but the existence of some common ground between people with differing opinions should be as well. Yet we’ve all heard anecdotes of increasing polarization, especially online. And in many people’s eyes, the pandemic particularly highlighted our growing differences. So, it’s time to take a moment and analyze, scientifically, why we should care about polarization and why it may be happening.