was considering where to get mass to reassemble from a character with nanites and I was like 'maybe their lungs are built in such a way they can cause a buildup, or harvest some of the air or waste products as it's inhaled and used' and googled how much air we inhale per day weightwise.
It's like 13 kgs appearently, which is more than we eat per day.
Now I no longer worry as much where borg drones get the mass they use to grow implants.
trek speculation, borg drones
"A half litre ordinary tidal breath weighs 0.6 g"
At ~15 breaths per minute that's 9g per minute, which is 540g per hour, which is ~13kg per day.
A cool and chill place for cool and chill people.