"At <a href=""https://www.youtube.com/watch?v=KW8Vjs84Fxg&amp;t=57m00s"">57:00</a><br><br>When she mentioned a martianized human returning to Earth becoming a second class citizen", due to their inability to function, it reminded me of something we have already on earth.<br><br>For certain international travel (maybe all idk never flown) you need shots for pathogens in the area you are visiting that you may not have encountered before. <br><br>The tech may not be there yet, but I wonder if there could be some way to quickly acclimate a body to a new level of gravity, air pressure, temperature, day/night cycle, etc. An augmentation of the internals?,(reply>), Bioengineering. They're way ahead of you.