4 points
Yeah, skimmed the article ans they dont seem to mention tge problem of having no oxygen (which might be a problem for the moss?), Mars not having enough gravity to hold an atmosphere (or is that bs?) and also the timescale (I think terraforming takes at least tens of thousands of years?).
If I remember correctly, it’s not a lack of gravity, it’s a lack of a magnetic field, so solar winds strip away the atmosphere.
3 points
