> Alright, so currently we can't even predict how bad osteoporosis becomes after a flight to Mars This is not true. We have multiple examples of astronauts and

> Alright, so currently we can't even predict how bad osteoporosis becomes after a flight to Mars This is not true. We have multiple examples of astronauts and cosmonauts who have done 1 and 1.5yr stints in microgravity.