Beautifully put.
> the steep opportunity cost of being lethargic through an induced contentment.
Weirdly, I think this is also a risk of actual contentment. I'm not a weed user, and I no longer consume alcohol (more or less). Nevertheless, through a number of strokes of good luck, I lead a very contented life, and I think this also causes a similar kind of lethargy-induced opportunity cost. Discontentment is a powerful motivator.
Thanks for writing this.