💻 Evaluating Mars’ atmosphere as if it were equal to Earth’s:
If we assume that Mars has an atmosphere with the same pressure as Earth's:
Total atmospheric mass ≈ 4×10¹⁸ kg.
Mars would lose about 10 kg/s of atmosphere.
That’s ≈ 0.0000000079% per year.
Losses over 100 years: 0.0000000079% – practically zero.
---
Let’s overestimate the losses:
Assume a catastrophic scenario – 10⁴ kg/s (1,000 times the current rate).
That gives 0.0000079% per year, or 0.00079% over 100 years.
Even in this case, losses over 100 years are microscopic.
---
If Mars suddenly received an Earth-like atmosphere, it would lose less than 0.001% over a million years.
To make Mars independently habitable, it would require an atmosphere close to Earth's. 🌎
Otherwise, any action will be more expensive, harder, and slower than on Earth.
And without modern industries involving multiple countries in the supply chain, Mars cannot sustain the current technological level.
It would fall – without Earth's support – to the late 20th century, and with a normal atmosphere, at least could continue from there.