Hi Jeff, You've shared a lot of valuable information here, especially in regards to the password cracking part! However, I find the subheading "Hashes are designed to be slow" a bit too broad. If that was true, how would you explain the popularity of MurmurHash, Jenkins and FNV1, all of which are designed for speed? Your article would be more correct if you specify "Secure hashes" or "Cryptographic hashes" here (and a few other places) instead. Otherwise, interesting article as usual.