Replying to Avatar Basanta Goswami

Sci-fi always shows future space suits as either bulky pressure tanks or mech suits

Former NASA Deputy Administrator Dava Newman developed the BioSuit, which uses mechanical (textile-based) counterpressure instead of the traditional gas-pressurized mini-spacecraft approach

Humans live at 1 atm on Earth, but in a pure oxygen environment like a space suit or station, ~0.3 atm is enough. The BioSuit has reached ~0.25 atm in lower body prototypes, close to 0.3 atm in areas like the calves and thighs, although joints are still well below target

We are more likely to see something like this with advanced AR and AI integrated helmets in the future IMO
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Leo Wandersleb 5mo ago

Interesting! I never thought of humans thriving at 0.3atm.

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ᴛʜᴇ ᴅᴇᴀᴛʜ ᴏꜰ ᴍʟᴇᴋᴜ 5mo ago

i think so long as the lungs are inflated the rest of the body can withstand a much lower atmospheric pressure (higher, also, which is why that liquid oxygen dissolving material like was depicted in The Abyss exists, as it stops the pressure of deep under sea). the lungs are the main thing that restricts our range at altitude and depth.

i doubt it would be pleasant to be more than a few hours with most of your body at that level of pressure though, in either direction.

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Fryheid 5mo ago

And also the potential longer term disease risk caused by your body being unable to function as intended for extended periods of time