It’s an interesting article, but my advice is to skip the middleman and get a copy of the book discussed, ‘A City On Mars’. It’s entertaining, informative and well researched/cited. It’s also my go-to recommendation for people coming at this from a layperson/enthusiast perspective because the reasons why “colonize Mars anytime soon” is comical and an obvious lie once you dig in are complex. Unfortunately said reasons are multidisciplinary to the extreme so an overview in digestible form can be helpful for people who’ve been emotionally invested in this fantasy.