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The colloquial meaning is different from a topological definition. Anything with a through-hole has a hole at each end. It’s an ambiguous question because the answer depends whether you’re referring to a openings in the face of the object (a cylinder in the case of a straw) or the void connecting the surface openings. Perhaps the safest answer is inclusive, so three. I’ve been told I’m not fun at parties.
You could make infinite indentations in an object with zero holes. That’s a very poor definition for a hope topologically.
I’ll give it a try and get back to you
And yet each indentation could hold something, like cheese or a kitten, so each indentation in functionally different from a smooth surface.
Deforming a shape changes it, thus topology is a special case of specifically ignoring most aspects of a shape.
But more importantly, calling any indentation a “hole” is a case of specifically ignoring the special significance of actual holes. You can’t pass through an indentation.
Guess I can’t dig holes either
Sure you can, they just gotta come out the other side. Otherwise it’s just a fancy divot
ill put a fancy divot in yah dome wit my 9 millie brah
Watch out, we got a badass over here
That’s why we have the compound word “through-hole”.
90% of important parts on living things are pockets and manipulations of surface area, two things completely ignored by topology. Topology is interesting mathematically, and has meaning for traversal and knot problems, but it’s not really useful to describe reality.
Topology is immensely useful to describe reality.
That’s why we have a diverse set of words such as “divot,” “indentation,” “pit,” “well,” and so much more!
Topology is a component of the language called “mathematics” we use to understand, describe, and model reality in concrete terms.
but it’s not really useful to describe reality.
This is just not true.
What topology does for people practically, is it allows them to do a rough kind of geometric reasoning in a wide variety of cases. Further, the geometric notions defined via topology subsume many of the more intuitive notions you might already know of from the number line or the plane.
For example, continuity of functions, convergence of sequences, interiors and boundaries of sets, connectedness and many other things are inherently topological notions that any person who has taken a typical calculus sequence should have some intuitive idea of.
One of the biggest difference between actual pure topology and analysis is that analysis is just done in the context of really nice types of topological spaces called metric spaces in which notions of distance are available.
Any time people are using results of calculus in the sciences, under the hood they are using details about topology on R^n.
but it’s not really useful to describe reality.
Skill issue
really
If you were to tell an average English speaker that you were going to dig an indentation, chances are high that they would misinterpret your meaning.
On the other hand, if you told them that you were going to dig a “blind hole,” I imagine they would have a much better understanding of your meaning and you would still be technically correct.
That’s part of why I try not to talk to average English speakers
Haha fair enough
But it’s a good definition if you are, say, putting a thing into each indentation. That’s why the two definitions are different.
Right, those wouldn’t be holes.
You seem to not be getting that words can have multiple (even if related) meanings. When some science or other discipline takes a common word and defines it really precisely for their purposes, that doesn’t change the definition of the common word for all usages and mandate that all lay people use it only with that discipline’s more precise definition.
Better precision leads to better communication.
Quite true. It is also important to know the limits of the precision you are going to be getting.
Openings and indentations aren’t the same thing though, are they?
Correct, a hole is a topological feature.
It’s ok, the people who tell you that weren’t invited to any of the parties either.
That’s right you’re not let me help:
"The
colloquialcloaca meaning is different from atopologicalTopsy-turvy definition. Anything with a through-hole has a hole at each endsnickering. It’s anambiguousGAY question because the answer depends whether you’re referring to a openings in the face of the objectmore-snickering(a cylinder in the case of a straw)obviously-unnecessary or the void connection the surface openings. Perhaps thesafestmost radical answer is inclusive, so three. I’ve been told I’mnotfun at parties.’I love the unabashed sharing of topical knowledge, so you’re welcome to my party.
A straw has 1 hole that goes all the way through.
The disk has two holes separated by a lesser distance
Not if it’s 2D
Holes are arguably 0D.
Idk if you can measure what area a hole takes up it has dimensions doesn’t it?
I’m being tongue in cheek of course and this is more a matter of philosophy and ontology than math and physics, but one could claim that the hole itself does not exist, it is the absence of matter, so what you are measuring is not the hole but rather the distance between any two points of matter. Otherwise one could point to nothing and claim that it is a hole of any size (like pointing to the sky and simply defining some part of it a hole of a certain size- it would effectively be a meaningless proposition in some sense).
But again, it is truly just silly semantics. :)
But can you measure something that doesn’t exist? Can the absence of something be something in and of itself? Is it the hole you are measuring, or the object around the hole?
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No but a void exists as defined by the matter around it
Yes we just did this
Both
Philosophy is easy
Sure but THIS hole isn’t 2D because it’s a compressed 3d object.
So do you
This is Crohn’s erasure.
No I got more. My anatomy is special
So, infinite holes. Just like a line has infinite points. And, a longer straw has a bigger infinite number of holes.
I mean no matter how you look at it it’s just the one hole.
In fact, all holes are the same hole.
If you think about it.
That’s what my uncle said.
The mother of all holes.
The motherhole if you will.
The Motherhole
I was in a band called that!
We mostly played blues standards and industrial metal and our live shows prominently featured custom inflatables.
The Ödipus hole
This, too, is a great bandname.
Tell that to my wife
Courtesy of the internet
So oral and anal are fucking the same hole and pussy is not a real hole.
The pussy’s more of a pit than a hole.
But yes, anal and oral are the same hole.
Vaginal canal -> cervix -> uterus -> oviducts ->abdominal cavity
I’d say the pussy is a hole.
Yes, but that’s not all, I claim that ALL anal and oral holes are the same hole.
I could agree with you, but first we’d need a species wide human centipede.
I can tell you haven’t watch the hole documentary starring Rainier Wolfcastle
Theres just one thing, and one way to look a the thing, which is the thing itself.
Das Ding an sich!
I like to think that all our holes are connected in a way
Not like a human centipede though
Two people kissing make a single continous tube going from one anus to the other
Great now I need a new folder.
hehe kinky
Who the fuck thinks that a straw has 2 holes?
How many holes do you got @NachBarcelona@piefed.social?
I think topologically I have only those:
- Mouth to ass (oh yeah)
- Left nostril
- Right nostril
- Left Eustachian tube
- Right Eustachian tube
- Right tear duct
- Left tear duct
No piercings or anything, so that’s it.
Nostrils and mouth are connected, topologically you could therefore have ass to left nostril with the mouth being an own opening!
That said I really really hope you forgot your uthera at least. Which is a curious question back to the subject: is it a topological hole if the opening is only to the insides of the corpus? (Thinking about the reproductive parts of either sex specifically).
I think topologically they don’t count, that’s why I didn’t count the urether/urethra.
is the ok symbol 👌 a hole?
what about membranes, pores?
The ok symbol is rather temporary but topologically that would count. I wouldn’t count pores or membranes here (I mean by my arbitrary definition).
Skin pores.
I didnt include them for the same reason I didn’t include the ears or the urinairy tract (they’re not “holes” as in tunnels, topologically speaking), but if your definition differs from mine then you’re right.
They go all the way thru the skin, but not all the way thru the body, so I guess you’re right.
Plus a hole for peeing i hope
Peeings over rated
That’s topologically not a hole, your bladder like you lung is on the outside/surface.
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you are forgetting the oropharynx. nasal area to the throat.
That’s included in both nostrils (they both end up there).
A straw has one hole that is open to two entrances. Like a single tunnel. We never say that a tunnel has two holes.
A tunnel has two holes.
We mustn’t say that. It is forbidden.
Christmas is just another form of control, from the matrix.
it pushes massive consumerism and the idea to kids must do as told to be “nice,” cause we can watch them all the time like a cia state.
Is that less forbidden?
It is forbidden.
I got a T shaped cat tunnel. It’s got two holes. I think. Topology can go suck a lemon
Which is why I said SINGLE tunnel.
Still one hole unless there’s isolated sections
This suggests the reverse is true, that every hole is at minimum a tube.
I’m throwing out all my cups today. I’ll jut drink from my plates.
also, cups and plates are not equal topologically, because a cup has handle with a hole in it, and plate doesn’t
So we finally realise that the topological notion of “hole” doesnt really capture the natural language concept of a hole.
same as most of professional terminology that made its appearance in everyday vocabulary
Perhaps the cups with one hole are the real solo cups.
Solo hole 😏
Worst deleted scene from Silo.
touche
Hahahaha I win again, Internet stranger!
Woe on me! Woe on me, sire! For the eternal shame you put onto me is irredeemable!
Ah, whatever shall i do? My bloodline is forever in aura debt!
Spread fourth this knowledge my peon!
Not all cups have that. I would consider that more a mug.
ah yes, can’t wait to get home and drink my evening MUG of tea :D
Yep, I drink it out my coffee mug.
mmm heart attacks☺️☺️☺️
welcome to topology
Topologically, people are toroids.
A straw has 1 hole with two ends… this is dumb
Ehh. I’m not sure it’s very constructive to make a topological argument from a debate people usually think about as a linguistic one.
I like to think of this particular example as a sort of reminder that we need to be specific on what grounds we are arguing. Colloquially, and for the sake of practicality, the straw has two holes. You would one hole or the other is in the drink, or clogged. But topologically, yes, there is only one hole.
Except maybe to illustrate the necessity of various disciplines, as this is a maths problem and not a linguistics one.
Arguing the linguistics of this is like arguing over astrology.
But saying that to make a hole in a sphere, you need to make two holes in the sphere is funny.
Very good observation. Now what about a hollow sphere?
All spheres are hollow (mathematically)
is x²+y²+z²<=r² not considered a sphere then?
Nope. That’s a ball. A closed ball to be precise. “Sphere” refers specifically to the “=” part.
In germany we say alles hat ein Ende nur die Wurst hat zwei
Fields dont need to be that isolated. In the end its arbitrary, so why not accept arguments of all perspectives?
Vsauce, Michael here.
So, I kinda just woke up from a nap and my still confused mind thought the meme said the straw had four holes.
Got it, a CD has 2 holes as well.
What the heck is a CD?
Certificate of Deposit
A straw has zero holes. It’s just a flat piece of plastic wrapped around and attached to itself. Ain’t nobody drilling holes through plastic to make straws.
Try that argument with your local topologist
Depends whether or not you consider the fastening of a surface to itself to be a real change to the topology.
Am I…Hole?
Well, pretty much every animal is merely a digestive tract with ever more elaborate ways of funneling food in one end and get rid of the waste at the other.
No, you are hansolo, with holes.
Greedo shot first!
Holesolo
