we get this:</p>
    <img src="images/drake-results.png" alt="Results from the calculator, showing 0~450 and a histogram." loading="lazy">
    <p>So, we can expect anywhere between 0 and 450 civilizations. And the probability skews to the lower end (the histogram is wider towards the bottom).</p>
    <p>Note: If you're curious why there is a negative number (<code>-5</code>) in the histogram, that's just an inevitable downside of the simplicity of the Unsure Calculator. Without further knowledge, the calcul