What is special about 1, 2, and 4 specific to Mars colonization? Even 3. Like those things don’t even seem like the top of the list as the next things to tackle

What is special about 1, 2, and 4 specific to Mars colonization? Even 3. Like those things don’t even seem like the top of the list as the next things to tackle for planet colonization? (Is a Tesla the next important thing to tackle?) What about like food and environmental support since we can’t actually breath there? This just sounds like some tortured narrative.