“The human body has 7 holes” is most likely a reference to [this vsauce video], and admittedly said video is the entirety of my knowledge on topology;
that should answer “I’m really curious how you got that number”, and… probably the comment I’m replying to?
I’m not sure I understand your rhetorical curiosity, but humans usually insert food in their mouth which is then pushed through the entire through-hole while being exposed to gastric acid and whatnot;
another example are tears, entering the openings in the eyelids and coming out of the nostrils.
Urine is instead chemically produced by the kidneys, and, unless you consider the space between molecules (which AFAIK is not within the domain of topology), that doesn’t count as one shape traversing a through-hole of another.
“The human body has 7 holes” is most likely a reference to [this vsauce video], and admittedly said video is the entirety of my knowledge on topology;
that should answer “I’m really curious how you got that number”, and… probably the comment I’m replying to?
I’m not sure I understand your rhetorical curiosity, but humans usually insert food in their mouth which is then pushed through the entire through-hole while being exposed to gastric acid and whatnot; another example are tears, entering the openings in the eyelids and coming out of the nostrils.
Urine is instead chemically produced by the kidneys, and, unless you consider the space between molecules (which AFAIK is not within the domain of topology), that doesn’t count as one shape traversing a through-hole of another.