# There are X kinds of people in the world: **URL:** \ **Category:** Miscellaneous and Personal Stuff I Must Share\ **Created:** [February 9, 2006, 7:06pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722 "2006-02-09T19:06:13Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Zeldar](https://avatars.discourse-cdn.com/v4/letter/z/b77776/32.png) [@Zeldar](https://boards.straightdope.com/u/Zeldar)\ **Post date:** [February 9, 2006, 7:06pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/1 "2006-02-09T19:06:13Z")
I found this one yesterday in a puzzle I was working. There are two kinds of people in the world: those who finish what they’ve started and so on. Can you top this? ---
**Author:** ![Sunspace](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunspace/32/1250_2.png) [@Sunspace](https://boards.straightdope.com/u/Sunspace)\ **Post date:** [February 9, 2006, 7:10pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/2 "2006-02-09T19:10:17Z")
There are two kinds of people in the world: those who can’t count, those who can, and those who just don’t care. 🙂 There are two kinds of people in the world: those who think there are two kinds of people in the world, and those who don’t. There are 10 kinds of people in the world: those who can count in binary, and those who can’t. ---
**Author:** ![MMI](https://avatars.discourse-cdn.com/v4/letter/m/53a042/32.png) [@MMI](https://boards.straightdope.com/u/MMI)\ **Post date:** [February 9, 2006, 7:45pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/3 "2006-02-09T19:45:33Z")
There are 10 kinds of people in the world. Those who know binary and those who don’t. There are 3 kinds of people in the world. Those who can count and those who can’t. ---
**Author:** ![MMI](https://avatars.discourse-cdn.com/v4/letter/m/53a042/32.png) [@MMI](https://boards.straightdope.com/u/MMI)\ **Post date:** [February 9, 2006, 7:46pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/4 "2006-02-09T19:46:43Z")
Wow, how did I miss **Sunspace** ’s response? ---
**Author:** ![chrisk](https://avatars.discourse-cdn.com/v4/letter/c/6de8d8/32.png) [@chrisk](https://boards.straightdope.com/u/chrisk)\ **Post date:** [February 9, 2006, 7:49pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/5 "2006-02-09T19:49:53Z")
At the moment, there are 6,591,540,219 kinds of people in the world… 😃😃😃 ---
**Author:** ![E-Sabbath](https://avatars.discourse-cdn.com/v4/letter/e/e19adc/32.png) [@E-Sabbath](https://boards.straightdope.com/u/E-Sabbath)\ **Post date:** [February 9, 2006, 8:08pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/6 "2006-02-09T20:08:45Z")
> [@Sunspace](#): > > There are 10 kinds of people in the world: those who can count in binary, and those who can’t. There are 10 kinds of people in the world: those who know trinary, those who don’t, and those who think it’s binary. ---
**Author:** ![carlb](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/carlb/32/5930_2.png) [@carlb](https://boards.straightdope.com/u/carlb)\ **Post date:** [February 9, 2006, 9:26pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/7 "2006-02-09T21:26:15Z")
There are two kinds of SCUBA divers: those who have peed in their wetsuits, and those who will admit it. ---
**Author:** ![Shagnasty](https://avatars.discourse-cdn.com/v4/letter/s/9dc877/32.png) [@Shagnasty](https://boards.straightdope.com/u/Shagnasty)\ **Post date:** [February 9, 2006, 9:36pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/8 "2006-02-09T21:36:53Z")
There is one kind of person in this world: those that piss me off and those that don’t. ---
**Author:** ![iamthewalrus\_3](https://avatars.discourse-cdn.com/v4/letter/i/258eb7/32.png) [@iamthewalrus\_3](https://boards.straightdope.com/u/iamthewalrus_3)\ **Post date:** [February 9, 2006, 10:35pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/9 "2006-02-09T22:35:34Z")
There are two kinds of people in the world: Those who think repeating Monty Python bits is funny, and those who don’t. And people who have never seen Monty Python. Three. Three types of people: Those who think repeating Monty Python bits is funny, those who don’t, and those who haven’t seen Monty Python. And those who sometimes, but not always—Four! There are four—no, no. Wait. Amongst the people in the world are such types as these: Those who think Monty Python is funny, those who might, if they had seen Monty Python, think— I’ll come in again. ---
**Author:** ![Zoe](https://avatars.discourse-cdn.com/v4/letter/z/a4c791/32.png) [@Zoe](https://boards.straightdope.com/u/Zoe)\ **Post date:** [February 10, 2006, 5:32am UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/10 "2006-02-10T05:32:00Z")
There are two kinds of people in the world coherent sentences. ---
**Author:** ![bob\_loblaw](https://avatars.discourse-cdn.com/v4/letter/b/f19dbf/32.png) [@bob\_loblaw](https://boards.straightdope.com/u/bob_loblaw)\ **Post date:** [February 10, 2006, 10:03am UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/11 "2006-02-10T10:03:29Z")
there are three kinds of people in the world: -those who will admit to masturbating. -those who will not admit to masturbating. -those who have no arms. ---
**Author:** ![Mangetout](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mangetout/32/19_2.png) [@Mangetout](https://boards.straightdope.com/u/Mangetout)\ **Post date:** [February 10, 2006, 10:20am UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/12 "2006-02-10T10:20:05Z")
There is one kind of person in the world; why do they come to me to die? ---
**Author:** ![Little\_Nemo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/little_nemo/32/3120_2.png) [@Little\_Nemo](https://boards.straightdope.com/u/Little_Nemo)\ **Post date:** [February 10, 2006, 10:52am UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/13 "2006-02-10T10:52:52Z")
There are two kind people in the world; all the rest are complete bastards. ---
**Author:** ![Malacandra](https://avatars.discourse-cdn.com/v4/letter/m/45deac/32.png) [@Malacandra](https://boards.straightdope.com/u/Malacandra)\ **Post date:** [February 10, 2006, 11:09am UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/14 "2006-02-10T11:09:09Z")
Assume that there are n kinds of people in the world. Show that, if there are n kinds of people in the world, it follows there are n + 1 kinds of people in the world. Show that there is one kind of people in the world. Hence, by induction, there are an infinite number of kinds of people in the world. (The remainder of the proof is left as an exercise for the student.) ---
**Author:** ![Max\_Torque](https://avatars.discourse-cdn.com/v4/letter/m/e9bcb4/32.png) [@Max\_Torque](https://boards.straightdope.com/u/Max_Torque)\ **Post date:** [February 10, 2006, 2:43pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/15 "2006-02-10T14:43:56Z")
A very true one: There are two kinds of computer users: those who have lost data, and those who _will_. ---
**Author:** ![Beware\_of\_Doug](https://avatars.discourse-cdn.com/v4/letter/b/278dde/32.png) [@Beware\_of\_Doug](https://boards.straightdope.com/u/Beware_of_Doug)\ **Post date:** [February 10, 2006, 2:45pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/16 "2006-02-10T14:45:13Z")
There are II kinds of people in the world: those who understand Roman numerals and those who don’t. ---
**Author:** ![Beware\_of\_Doug](https://avatars.discourse-cdn.com/v4/letter/b/278dde/32.png) [@Beware\_of\_Doug](https://boards.straightdope.com/u/Beware_of_Doug)\ **Post date:** [February 10, 2006, 2:48pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/17 "2006-02-10T14:48:23Z")
There are eleven kinds of people in the world: those who understand Roman numerals and those who don’t. ---
**Author:** ![Dead\_Cat](https://avatars.discourse-cdn.com/v4/letter/d/9fc29f/32.png) [@Dead\_Cat](https://boards.straightdope.com/u/Dead_Cat)\ **Post date:** [February 10, 2006, 6:53pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/18 "2006-02-10T18:53:50Z")
There are two kinds of people in the world: those who are apathetic and… I can’t be bothered to tell you about the others. Not quite the same thing, but in a similar vein: Everybody makes sweeping generalisations from one example. At least, I do. ---
**Author:** ![mr.jp](https://avatars.discourse-cdn.com/v4/letter/m/48db29/32.png) [@mr.jp](https://boards.straightdope.com/u/mr.jp)\ **Post date:** [February 10, 2006, 9:14pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/19 "2006-02-10T21:14:42Z")
haha, I am the Walrus. Good one. Mangetout: i dont get it? ---
**Author:** ![mr.jp](https://avatars.discourse-cdn.com/v4/letter/m/48db29/32.png) [@mr.jp](https://boards.straightdope.com/u/mr.jp)\ **Post date:** [February 10, 2006, 9:25pm UTC](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722/20 "2006-02-10T21:25:42Z")
There are two kinds of people in the world. Those who can think of a joke in this sentence, and those who cant. [Next page](https://boards.straightdope.com/t/there-are-x-kinds-of-people-in-the-world/343722.md?page=2)