Yeah, it all depends on what you&#x27;re trying to do. I&#x27;d also wager that Graham et al simply had more fun writing Lisp than any other language, and I grant them the right to do whatever they like. Yahoo presumably bought the product because they found it valuable. If they found that rewriting Lisp in C++ was the only way to get people to work on it, I don&#x27;t question their business decision, although it does seem like a kind of &quot;now you have two problems&quot; situation. (Personally I find C++ way more difficult than anything I&#x27;ve seen in Lisp.)