Really cool, hooky tune. I love the arrangement with both a strong vocal and instrumental hook. Makes this a very accessible and appealing tune.
The main thing that sticks out to me also is the vocals. Listeners nowadays almost expect pitch correction. Also, a lot of vocal coaches would discourage you from adding the 'h' sound when you sing two notes with one syllable (EG pronouncing 'men' as 'me-hen'. You do hear it occasionally in pro recordings, but not very often. If you're not doing it intentionally, I'd recommend just sliding between notes on the vowel sound.
Regardless, this is a really well crafted tune. The subject is intriguing too. Nice job.
Peace,
Ian