PaxEthenica t1_iwrp1bf wrote on November 17, 2022 at 9:07 PM

Reply to comment by Karcinogene in Early meteorites brought enough water to Mars to create a global ocean — Meteorites bombarding the Red Planet may have carried so much water that it could have covered the planet in a layer 300 metres deep if spread out, while also depositing molecules essential for life by marketrent

You also don't know how biochemistry works, either. Nor are you informed about the current findings of prevailing Martian geochemistry.

You're not going to grow lichen on rocks that chemically bind water into different types of rock. You are not going to GMO plants into utilizing them, either.

Every terrestrial macroscale life form known isn't a modular organism. It's a complex, messy, interconnected thing supported & simultaneously under assault by a billions year old ecology. This ecology will never exist on Mars within the timespan of the human species, regardless of any genetic jiggery-pokery we do.