I thought it was worth mentioning as a separate point; just saying "you can pattern match" doesn't say much, when it's actually a key feature to guarantee certa

I thought it was worth mentioning as a separate point; just saying "you can pattern match" doesn't say much, when it's actually a key feature to guarantee certain correctness in a program. Pattern matching offers mainly correctness and conciseness, maybe the correctness part should have been emphasized more.