I like to think what Michael Stevens(VSauce) said in his video[1] as a continuation of Asimov&#x27;s letter.<p>&quot;Susan Haack compares knowledge to a crossword puzzle. Old answers interweave with old one. They all reinforce one another. The clues are the question we ask. And the way the answers fall into a predetermined grid...well, that&#x27;s our confidence that we are on the right track.&quot;<p>[1]: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=VNqNnUJVcVs" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=VNqNnUJVcVs</a>