Challenge me, to come up with something, why? You were the one doing the assertion, so you should be prepared to be challenged and answer, not challenging back.<p>You said that a given notion&#x2F;idea is against human nature; the burden of proof is yours. Do you have any scientific support for that claim? What definition of &quot;human nature&quot; are you following? Even relating to the very limited historical accounts you were trying to assess, how can you be sure it&#x27;s &quot;human nature&quot;, not &quot;human culture&quot;?<p>I&#x27;m sure you&#x27;re thorough and rigorous in your field of expertise, and don&#x27;t accept &quot;claims&quot; blindly. I&#x27;m just asking for the same standards in other subjects. No need to be frivolous just because the subject is human behaviour.