Toward the end of that slide deck, in the &quot;Slowing Brute Force&quot; section, there the following slide:<p>&gt; Argon2 ensures that both defenders and attackers hash passwords on the same platform (x86)<p>Do they simply mean that currently the most cost effective platform to deliver the necessary computation and memory is x86?<p>I&#x27;m having trouble believing that it is either achievable or desirable to design a password hash that&#x27;s only efficient on one architecture.