It&#x27;s not just an impressive Scheme that I plan to try but it&#x27;s history from 8-bit to modern implementations was a fun read. Many clever tradeoffs made. See here:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10210931" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10210931</a>