Have you seen this talk it might lend some persepctive - <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Uy062kp-LM4" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Uy062kp-LM4</a>