The most common objection I&#x27;ve heard is that physicists are strongly biased towards &#x27;conservative&#x27; laws. And for good reason: Assuming that physical quantities are conserved and then looking for apparent violations of that assumption has been an extremely fruitful theoretical and empirical enterprise.<p>&quot;Many worlds&quot; suggests the opposite: That physical quantities such as mass are forever increasing, albeit in a way we can&#x27;t experimentally detect.