<p><pre><code>  person 1: Aliens have visited our city.
  person 2: Is there proof of that? 
            Probably just an optical illusion or something.
  person 1: Can you prove aliens didn&#x27;t visit? 
            What is your math for optical illusion?
</code></pre>
I&#x27;m sorry, but the burden of proof lies with the person making a claim, not with detractors.