• Log In
  • Sign Up
    • Science is never settled. But with enough work, it can reach a high degree of certainty.

      When you get into a car and drive somewhere, you feel safe because you have a high degree of certainty that you will arrive at your destination. But you also know that car accidents happen. You may even have experienced a car accident yourself.

      Every time you drive somewhere, there's a small chance that you will be injured or killed. But you drive anyway. And you'll probably be fine. Not because science has proven that car accidents don't happen, but because statistics show that you're much more likely to arrive at your destination safely than you are to die in a car accident.

      A preponderance of evidence tells us that driving is generally pretty safe. The fact that some people have car accidents doesn't change that.

      In the same way, a preponderance of evidence tells us that vaccines are generally pretty safe.