&quot;I think that before we have immortality, we need to understand and cure cancer.&quot;<p>I&#x27;d be happy with toenail fungus.  Or mild eczema.  Or, really, <i>any medical condition whatsoever</i>.<p>You realize people are still arguing over why your joints make a &quot;pop&quot; sound when you crack them, right ?  Like, they&#x27;ve sort of settled on the air bubbles rapidly escaping the joint, but ... <i>there&#x27;s still a debate</i>.