I think we can life in mars, but not now,
maybe 1000 year again
but we do not know when the end will come, the earth and everything can be destroyed without the opportunity to move to mars
I think we're perfectly able to live on Mars in just 30 years. ...
Not in any self sustaining mode.
100-200 years for that is more realistic. Even that might not allow local production of things like advanced tech medicines, electronics or sensors. And we'd need to raise herds of cattle and pigs, for steaks and bacon.
Can't move there until we have that, now can we?
Even now we can perfectly live in Mars underground. Underground we are safe from micro meteorites, radiation, strong wind, dust and temperature fluctuation.
We can plant and raise some herds underground in mars. We can get energy from the Sun or using Nuclear Reactor as power source. We can produce oxygen from the water. We can seal the entrance to prevent the oxygen from escaping and to maintain the pressure.
I don't argue with your reasoning. Only that any realistic implementation should be looked at as 100-200 years. Try making up a list of required items, then determining which would be produced or manufactured on Mars and how, and what would be shipped from Earth and how.
The only practical way is to send robots, rovers that can do more than just rove around, then have them start a construction project. NASA and other space agencies don't know how to do construction projects. Regardless, a sufficiently large collection of robots over decades, one would think could make serious progress in creating a habitat.
However, that would likely be counterproductive. Much wiser would be to use such robots to study the planet, as our remote eyes and hands, then make very careful decisions as to where, and why, to place human habitats. Then commence building them. There isn't anything wrong with something like 30-50 years for such a period of research and study.
100 - 200 years are very faraway. We don't know if humans civilization would still exist on that time. We better conquer Mars now before it's too late. We are like putting our eggs in one basket if we only live on one planet. It only takes one asteriod or super volcano or nuclear war to end human civilization.
We already have the techs. All we need a serious decision to go to Mars. I think the budget for one year for the military is enough to go to Mars.
No, you aren't anywhere near having the techs. Just as at the beginning of the Apollo program, that tech did not exist. It was all invented from scratch.
In the 1950s-1960s, there were optimistic predictions of growing food in a space station, and of space stations being self sustaining. Well, that really didn't work out too well. This is no different. The rosy promise really isn't enough. You need to show and not in the abstract, the practical feasibility, but to prove it. You need to have the farms and the herds of cattle thriving underground, show that they cannot be wiped out by a bug or a fungus or whatever.
Those are whole ecosystems to be built from scratch and which must be self sustaining. And that's just focusing on the food aspect of the problem. Typically in the chemical industry, a "pilot plant" is built as a test item, and run for 10-20 years before those methods are put into a 4 billion dollar investment in a facility.
So how many rockets, what type of equipment, how many cubic yards of dirt, how much concrete type material made from what, how many plants and animals, and what time from JUST FOR THAT PILOT PLANT?
Lol, that's what happens when you start to think it out...
Then figure the implementations to support a small group - small - of humans is 100-1000x larger than that pilot plant.
because it will never. However, the Sun's collapse is in "just" 4 000 000 000 years. In so much time we'll have found and colonized manys new planets