here is a great live coding demo that explains the y combinator from first principles<p><a href="https:&#x2F;&#x2F;youtu.be&#x2F;FITJMJjASUs?t=936" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;FITJMJjASUs?t=936</a>