More significant I guess is how excited the author manges to be over these coincidences. Maybe a word of caution is needed: Overly generous interpretations is how things like Nostradamus or the hidden code of the bible retain their credibility with parts of the population.
And frankly, if you think that stock market \approx thermometer is insightful, you should probably be kept away from positions of responsibility.
Scroll down and you have some text boxes you can try some yourself. Here's some I tried (filtering out repeats and plural forms of input words. Those artifacts seem to happen a lot and would be easy to ignore)
cat:dog::bread:butter eh? I guess.
sword:shield::attack:protect okay that works.
up:down::left:leaving Eh, not great. I guess if you think they're analogous in terms of tense it kind of works. Disappointing, word2vec. (to be fair, "right" was third highest)
drive:car::dick:? Whatever it was, it made me giggle immaturely.
I bet you could run a bruteforce search over the possibility space for equations that can be made from simple vector addition/subtraction operations within some margin of error (since nothing perfectly overlaps) and look for interesting candidates manually post-hoc.
Really, there's a lot of \approx going on here -- you have thresholds for distance inside your vector space. Not only that, this shows that he cherrypicked "great" examples.
And frankly, if you think that stock market \approx thermometer is insightful, you should probably be kept away from positions of responsibility.