Pardon me for a too-brief reply. Your 30+ comment was of course factually correct. I was reflecting on the date in the article, 1964, just admiring how very far-seeing he was, but not meaning to offend you, dear V K!
No offense taken. When reaching a certain age, one tends to remember the ‘little things’ when attempting to remember when an event occurred. It is remarkable Harvey’s foresight was right on target. Just as it is remarkable it was remembered his book made it into our hands: both how and when.