Functional Programming Lessons Conclusion

As many others observe as well, one of the major reasons to write is&#xA;to firm up ideas in one&rsquo;s own head. Serializing an idea out into&#xA;English words is still no guarantee one understands it deeply, but it&#xA;is great progress over a very fuzzy idea that has never been fleshed out at&#xA;all. &#xA; I&rsquo;ve known for a long time I wanted to sit down and write this&#xA;out. But I had…