is it? self-substainable colonizing Mars seems to be difficult to a point, where it currently looks that even with larger science improvements it won't be a th

is it? self-substainable colonizing Mars seems to be difficult to a point, where it currently looks that even with larger science improvements it won't be a thing for a long time (as a side note with self-substainable I here meant also growable, expandable, doing science maybe trying to colonies other people etc. i.e. close-loop isn't cutting it at all). and I have seen people argue that when worse come to worse we still could try to colonies mars and similar generally I have seen the ease of colonizing mars and the amount this will increase surivability of the human species mid term hugely estimate quite frequently