It's sad to think that the word meditation would be so easily associated with religion; for me, it's almost the opposite. Instead of looking outward for answers provided by those powerful enough to spread their particular brand, we can look inward and find truths that make sense to us on an individual level. Meditation, or at least my personal understanding of my own practice, is a chance to step back from one's self.
And that's exactly what a lot of drug use is about too. I've smoked a lot of pot in my time, and I've had some significant realizations and objectively good ideas. I've also fooled myself with a lot of bullshit epiphanies that become almost laughable in the light of day. Ultimately though I'm glad that I had the curiosity and maturity to expand my mind, and do so on my own terms, starting at an age where I understood the consequences.
The trick, at least for me, has been to take lessons that I've learned from drug use and meditation, and apply those to my day to day sober life.
In terms of the article: I'm not a programmer, I spend most of my days writing and using language. If I tried to do that under the influence, I may come up with few gems of ideas, but mostly it would be a muddy, confused mess. I'll just reserve such introspection for idea generation, not for actual work.