qwertydawom	Tonight's topic will be : duality.
qwertydawom	Indeed, like you may have noticed, in real life, it plays a big part :
qwertydawom	left/right
qwertydawom	masculine/feminine
qwertydawom	right/wrong
qwertydawom	yin/yang
qwertydawom	and well, ****** :)
qwertydawom	who can guess what's hidden?
qwertydawom	hint : if you add "universe"...
Ch4r	omgz
Ch4r	binary!
qwertydawom	ok, so, about the "male/female", I think you know which symbols are used to represent each of them?
Snoop	pussy/penis?
Megahertz	0-> male
Megahertz	0-+ female
qwertydawom	yes MHz :)
egahertz	;)
qwertydawom	and, have you wondered about their meanings?
qwertydawom	I mean, "why" these symbols?
Megahertz	no
qwertydawom	Well, for the male one, it has two meanings :
qwertydawom	- a man with a spear
bonusbug	.o0(The mirror of the Roman Goddess ... wikipedia rules ;)
qwertydawom	- a... penis (yes Snoop..)
Megahertz	"Roman god Mars"
qwertydawom	<bonusbug> .o0(The mirror of the Roman Goddess ... wikipedia rules ;) --> yes, this is for the female's one
Megahertz	and venus for the girl
Megahertz	"men are from Mars women are from venus" ;)
qwertydawom	indeed :)
qwertydawom	and, in fact, the male is the intersection in logic
qwertydawom	and the female... union.
qwertydawom	Also, you may remember about the "odds/evens".
qwertydawom	with odd+odd, etc.
qwertydawom	and the Goldbach's conjecture : every even number is the sum of two primes.
qwertydawom	(indeed : 4 = 2 + 2)
Megahertz	.o0( 1+3=4)
Megahertz	indeed
qwertydawom	yes, MHz, but 1 isn't prime ;)
mu-tiger	eh?
Ch4r	so qwertydawom, how d'you get 2? :/
Ch4r	or is 2 not an even number?
mu-tiger	wait
Ignite	pwnt
mu-tiger	1* itself is 1
mu-tiger	and not times anything else
Ch4r	I guess you can add 3 and -1 for 2...
mu-tiger	how is 1 not prime?
Ch4r	err
Ch4r	no
Ch4r	5 and -3*
Ch4r	if that counts.
Ch4r	mu-tiger, it just isn't
Ch4r	it's special
qwertydawom	read the previous lectures mu :p
mu-tiger	k
qwertydawom	yes, Ch4r, the conjecture is for every number greater than 2 ;)
Ch4r	oh, ok
qwertydawom	ok, now, a little game :)
qwertydawom	Ch4r and Mu choose respectively an odd number for the 1st one, and an even number for the 2nd.
Ch4r	hmm?
Ch4r	just choose a random odd number?
qwertydawom	yes
Ch4r	ok
Ch4r	13
qwertydawom	and mu chooses an even number
mu-tiger	6
qwertydawom	now, Ch4r multiplies his number by an odd number
Apr 08 23:01:07 mu-tiger	it wouldn't be prime
Apr 08 23:01:14 Ch4r	mu-tiger, I know ;)
Apr 08 23:01:20 Ch4r	qwertydawom, ok 13 * 3 = 39
Apr 08 23:01:25 qwertydawom	and mu multiplies her number by an even number
Apr 08 23:01:39 mu-tiger	2*8=16
Apr 08 23:01:47 qwertydawom	now, you add your two final numbers
Apr 08 23:01:54 mu-tiger	:O
Apr 08 23:01:56 mu-tiger	;p
Apr 08 23:02:03 Ch4r	55...
Apr 08 23:03:40 qwertydawom	:)
Apr 08 23:03:46 qwertydawom	ok, now, you got the rules?
Apr 08 23:05:37 Ch4r	what rules?
Apr 08 23:06:09 mu-tiger	the sum of an even and odd number is prime?
Apr 08 23:06:34 Ch4r	so 2 + 7 = 9... 9 is prime? 
Apr 08 23:06:39 Megahertz	0.o
Apr 08 23:06:40 Ch4r	I think I just got sucked into a different universe...
Apr 08 23:06:48 mu-tiger	me too :(
Apr 08 23:06:50 Ch4r	lol
Apr 08 23:07:00 Ch4r	qwertydawom, what rule?
Apr 08 23:07:15 Megahertz	ctcp ping qwertydawom -.-
Apr 08 23:07:23 Ch4r	Goldbach's conjecture?
Apr 08 23:07:25 Ch4r	hmm
Apr 08 23:07:37 qwertydawom	no no
Apr 08 23:07:43 qwertydawom	the rules of this little game
Apr 08 23:07:45 Ch4r	oh
Apr 08 23:07:46 Ch4r	yeah
Apr 08 23:07:51 qwertydawom	alright
Apr 08 23:08:01 qwertydawom	so now, with mu, in private, you do that again
Apr 08 23:08:07 qwertydawom	and only give me the final number
Apr 08 23:08:35 Ch4r	ok, hold up
Apr 08 23:08:35 qwertydawom	and then, I'll be able to guess who took odd/even. :)
Apr 08 23:10:05 Ch4r	qwertydawom, 65
Apr 08 23:10:13 Ch4r	...we think ;)
Apr 08 23:10:21 Ch4r	jk
Apr 08 23:11:02 Ch4r	but yeah... 65...
Apr 08 23:11:13 qwertydawom	ok
Apr 08 23:11:20 qwertydawom	ch4r : odd   mu : even?
Apr 08 23:11:26 Ch4r	how'd ya know? ;/
Apr 08 23:11:29 Megahertz	lol
Apr 08 23:11:58 qwertydawom	1st case :
Apr 08 23:12:55 qwertydawom	Mu_even * even + Ch4r_odd * odd = odd
Apr 08 23:13:54 qwertydawom	Mu_odd * even + Ch4r_even * odd = even 
Apr 08 23:17:39 qwertydawom	you gave me an odd number in the end
Apr 08 23:17:48 qwertydawom	so, I knew that you had an odd number
Apr 08 23:18:02 mu-tiger	i'll be honest
Apr 08 23:18:02 mu-tiger	i'm just lost
Apr 08 23:19:10 Greenbox	well, basically all that has been said is that the result is dependent on the state of Ch4r's number
Apr 08 23:19:20 qwertydawom	yep
Apr 08 23:19:21 Greenbox	since at no point is yours changing the result
Apr 08 23:19:25 mu-tiger	but how does he know?
Apr 08 23:19:32 Greenbox	anything multiplied by even is even
Apr 08 23:19:36 Greenbox	but not everything against odd is odd
Apr 08 23:19:42 mu-tiger	that char didn't take the even number?
Apr 08 23:19:43 Greenbox	he doesn't need to
Apr 08 23:19:51 Greenbox	as he said, there are 2 cases
Apr 08 23:19:58 Greenbox	and it depends on what char has, not you
Apr 08 23:20:17 Greenbox	in a way, you could use what your number is to predict the result
Apr 08 23:20:26 Greenbox	but unless you can guarantee his number is the opposite type of yours
Apr 08 23:20:29 Greenbox	there is no way to know
Apr 08 23:20:41 mu-tiger	but he said char had odd i had even
Apr 08 23:20:53 Greenbox	look at case 1 then
Apr 08 23:20:57 Greenbox	<qwertydawom> Mu_even * even + Ch4r_odd * odd = odd
Apr 08 23:24:06 qwertydawom	so, mu, let's take an example :
Apr 08 23:24:30 qwertydawom	you choose : 6
Apr 08 23:24:35 qwertydawom	Ch4r : 7
Apr 08 23:24:44 qwertydawom	then :
Apr 08 23:24:49 qwertydawom	you : 2
Apr 08 23:24:59 qwertydawom	Ch4r : 3
Apr 08 23:25:09 mu-tiger	k
Apr 08 23:25:15 qwertydawom	6*2 + 7*3 = 33 --> odd
Apr 08 23:27:12 qwertydawom	ok, so, other example :
Apr 08 23:27:39 qwertydawom	you choose : 5
Apr 08 23:27:46 qwertydawom	Ch4r : 4
Apr 08 23:27:49 qwertydawom	then :
Apr 08 23:27:54 qwertydawom	you : 2
Apr 08 23:28:01 qwertydawom	Ch4r : 3
Apr 08 23:28:12 qwertydawom	5*2 + 4*3 = 22 --> even
Apr 08 23:28:44 qwertydawom	and, in both cases, you see that the sum's evenness/oddness is the same as Ch4r's first number :)
Apr 08 23:29:00 qwertydawom	Ch4r : 7 -> odd   --> 3 -> odd
Apr 08 23:29:10 qwertydawom	Ch4r : 4 -> even --> 22 -> even
Apr 08 23:29:15 mu-tiger	yeah
Apr 08 23:29:17 mu-tiger	ok
Apr 08 23:29:23 qwertydawom	so, you got it now? :)
Apr 08 23:29:29 mu-tiger	kinda
Apr 08 23:29:35 mu-tiger	i need to play with it in my own time
Apr 08 23:29:37 mu-tiger	ty
Apr 08 23:29:38 qwertydawom	k ;)
Apr 08 23:30:13 qwertydawom	Well, this latin quote will take you back to a known country mu ;) :
Apr 08 23:30:25 mu-tiger	lol
Apr 08 23:30:34 qwertydawom	"Numero deus impare gaudet."  (by Virgilius)
Apr 08 23:31:43 qwertydawom	it means : Divinity likes odd number.
Apr 08 23:32:16 mu-tiger	hrm
Apr 08 23:32:31 qwertydawom	deus -> god
Apr 08 23:32:37 qwertydawom	gaudet -> likes
Apr 08 23:32:41 qwertydawom	impare -> odd
Apr 08 23:32:47 qwertydawom	numero -> number
Apr 08 23:32:47 qwertydawom	:)
Apr 08 23:34:04 qwertydawom	ok?
Apr 08 23:34:29 mu-tiger	yes
Apr 08 23:34:49 mu-tiger	i was actually thinking about the "holy" numbers, 3, 7, 9
Apr 08 23:34:53 mu-tiger	go on pls
Apr 08 23:35:16 qwertydawom	alright :)
Apr 08 23:35:43 qwertydawom	So, a quick glance at binary, and then, we'll visit your kingdom, philosophy. ;)
Apr 08 23:36:15 qwertydawom	So, Ch4r, what are the two symbols in binary? (;P)
Apr 08 23:36:26 Ch4r	lol
Apr 08 23:36:27 Ch4r	0, 1
Apr 08 23:36:32 qwertydawom	yay! haha
Apr 08 23:36:35 Ch4r	:P
Apr 08 23:36:47 qwertydawom	so, yeah, 0 or 1, false or right
Apr 08 23:37:18 qwertydawom	now, what's about binary's history?
Apr 08 23:37:25 qwertydawom	well, the binary system
Apr 08 23:37:46 qwertydawom	was invented in Europe by Leibniz (a mathematician, philosopher...)
Apr 08 23:38:09 qwertydawom	refering to the chinese book "Ye-Kim"
Apr 08 23:38:28 qwertydawom	which was written in China around 25 centuries BC
Apr 08 23:38:52 qwertydawom	Leibniz associated 0 with "nothing" and 1 with "God"
Apr 08 23:39:50 *	Ch4r removes channel operator status from Ch4r
Apr 08 23:39:50 qwertydawom	He found a mystical(yay, mysticgoose :p) meaning to the fact that all the numbers could be created from "nothing" and the "unity".
Apr 08 23:40:23 qwertydawom	Obviously, the success of the binary system is due to the developement of computers.
Apr 08 23:40:53 qwertydawom	Now, what about binary coding?
Apr 08 23:41:05 qwertydawom	example : what's 315 in binary?
Apr 08 23:41:14 bonusbug	.o0(hmm thats why he made this amazing Leibnitz cookies ? ... ;)
Apr 08 23:41:43 dDevil	100111011 ;)
Apr 08 23:41:53 Ch4r	010000100110100101101110011000010111001001111001001000000110100101110011001000000110110001100101011001010111010000100001 ;)
Apr 08 23:42:04 qwertydawom	hahaha
Apr 08 23:42:05 dDevil	Psh, sif.
Apr 08 23:42:09 qwertydawom	dDevil is right :)
Apr 08 23:43:27 qwertydawom	and Ch4r's statement is true too :) 
Apr 08 23:43:31 Ch4r	:D
Apr 08 23:43:44 dDevil	:\
Apr 08 23:43:55 mu-tiger	one is ascii and the other is uhm
Apr 08 23:43:55 qwertydawom	Ok, so, one question, dDevil, did you convert it in your head?
Apr 08 23:44:04 dDevil	Yesm.
Apr 08 23:44:09 qwertydawom	good :)
Apr 08 23:44:15 qwertydawom	which method did you use?
Apr 08 23:44:33 dDevil	I learnt it by maknig a table
Apr 08 23:44:44 dDevil	 8 4 2 1, etc
Apr 08 23:45:04 qwertydawom	Ok, riftor's method maybe? (http://www2.binaryuniverse.net:81/tutorials/binary.txt)
Apr 08 23:45:05 dDevil	Then, if 256 can go in 315
Apr 08 23:45:13 qwertydawom	ok, that's it
Apr 08 23:45:19 dDevil	= 1
Apr 08 23:45:19 dDevil	Ja.
Apr 08 23:45:29 dDevil	I'm not too good at explaining, sorry :P
Apr 08 23:45:33 qwertydawom	well, there's also the method of successive divisions. :)
Apr 08 23:45:45 qwertydawom	let me show you with this example :y? 
Apr 08 23:46:11 qwertydawom	315/2 -> 157 with a remainder of 1
Apr 08 23:46:39 qwertydawom	157/2 -> 78 with a remainder of 1
Apr 08 23:46:45 dDevil	Oooh.
Apr 08 23:46:50 qwertydawom	78/2 -> 39 with a remainder of 0
Apr 08 23:46:51 Rolapepsi	oh cool, you're teaching modulo now
Apr 08 23:47:12 qwertydawom	39/2 -> 19 with a remainder of 1
Apr 08 23:47:25 qwertydawom	19/2 -> 9 with a remainder of 1
Apr 08 23:47:36 qwertydawom	9/2 -> 4 with a remainder of 1
Apr 08 23:47:47 qwertydawom	4/2 -> 2 with a remainder of 0
Apr 08 23:47:58 qwertydawom	2/2 -> 1 with a remainder of 0
Apr 08 23:48:11 qwertydawom	now, read the remainders backwards :)
Apr 08 23:48:15 Rolapepsi	The range of any number modulus x is 0 -> (x-1)
Apr 08 23:48:41 qwertydawom	(including the "1" of 2/2)
Apr 08 23:49:22 qwertydawom	and you get : 100111011 :D
Apr 08 23:51:18 qwertydawom	ok
Apr 08 23:51:30 bonusbug	(btw this works with every base (2,8,16 or even 3,56,7 .. or whatever)
Apr 08 23:51:53 qwertydawom	indeed :)
Apr 08 23:53:06 qwertydawom	now, you may have noticed that this logic principle is Boole's one ;)
Apr 08 23:53:30 qwertydawom	and.. let's move to philosophy! :)
Apr 08 23:55:01 qwertydawom	We'll deal with manichaeism.
qwertydawom	Manichaeism is a conception that divides everything into two parts.
qwertydawom	Where one is entirely considered with favor, and the other one is completely rejected.
qwertydawom	If you want to know more : http://en.wikipedia.org/wiki/Manichaeism .
qwertydawom	duality in philosophy
qwertydawom	we can also see it if we consider the two following notions :
qwertydawom	the duality between pleasure and ... ?
mu-tiger	pain
qwertydawom	indeed :D
qwertydawom	The brain is not a computer.
qwertydawom	He is not functioning as a (knowledge) network administrator, of the memory, or of the relations with the world.
qwertydawom	The brain is entirely built on the opposition principle :
qwertydawom	a constant fight between antagonist systems.
qwertydawom	The couple pleasure/pain can't be separated.A
18:16 <@qwertydawom> It is directed by the neurotransmitters, little moleculas who transmit the messages from one neuron to an other. :)
18:17 <@qwertydawom> Neurotransmitters :
18:18 <@qwertydawom> BAD : serotonin
18:18 <@qwertydawom> GOOD : dopamine
18:21 <@qwertydawom> Well, in fact, it's a bit more complex than that. :P
18:21 <@qwertydawom> There are more than 120 neurotransmitters..
18:22 <@qwertydawom> So, well, this leads us to the following philosophical question :
18:22 <@qwertydawom> "Is pleasure necessarily related with pain?"
18:23 <@qwertydawom> while, at first sight, you may think "um.. no, when there's pleasure.. no pain...", if you think a bit more
18:23 <@qwertydawom> you may arrive to the conclusion that, indeed, where there's pleasure, pain's not far...
18:23 <+mu-tiger> like scratching an itch
18:24 <@qwertydawom> yep
18:26 <@qwertydawom> and, a philosophy who's (those days) particularly appreciated
18:26 <@qwertydawom> mu, if I say "yin and yang", you answer ... philosophy ? :)
18:26 <+mu-tiger> yes
18:26 <+mu-tiger> definitely
18:27 <+mu-tiger> now, zen is a bit tricky
18:28 <+mu-tiger> (for the western mind)
18:28 <@qwertydawom> indeed
18:29 <@qwertydawom> and, well, one should know that (although most people think the contrary) :
18:29 <@qwertydawom> yin&yang is not good&bad
18:30 <+mu-tiger> that's right
18:30 <+mu-tiger> nor is it really a duality
18:30 <+mu-tiger> but two sides of the same coin
18:31 <@qwertydawom> yes :)
18:33 <@qwertydawom> but we have that : Yin <-> contracting
18:33 <@qwertydawom> Yang <-> expanding
18:34 <@qwertydawom> Yin : moon / Yang : sun
18:34 <@qwertydawom> so, yeah, that's the "two sides of the same coin"
18:35 <@qwertydawom> also, we associate Yin with the woman, and Yang with the man. :)
18:36 <@qwertydawom> Now, let's have a look at the South-Korean flag
18:36 <@qwertydawom> http://www.sfu.ca/~sbaea/KFlag.JPG
18:36 <@qwertydawom> what's the meaning of these symbols?
18:37 <+mu-tiger> it's the yin yang and the i ching hexagrams for
18:37 <+mu-tiger> uhm
18:37 <@qwertydawom> yep :)
18:37 <+mu-tiger> i dunno, heaven and earth?
18:37 <@qwertydawom> up in red: yang (sun)
18:37 <+mu-tiger> fire and water?
18:37 <@qwertydawom> blue : yin (sea)
18:37 <+mu-tiger> xD
18:38 <@qwertydawom> this represents the symbol of "moving", of "equilibrium" and the harmony of "infinity sphere".
18:39 <@qwertydawom> On the sides, there are "trigrams"(Pa-Kua), with a sort of diagonal symmetry.

18:39 <@qwertydawom> Each one of them represents one of the four fondamental elements :
18:40 <@qwertydawom> upper left hand : air
18:41 <@qwertydawom> bottom right hand : earth
18:41 <@qwertydawom> bottom left hand : water
18:42 <@qwertydawom> so, upper right hand is ... ? :)
18:42 <@qwertydawom> sorry
18:42 <@qwertydawom> bottom left hand is fire
18:42 <@qwertydawom> hence, upper right hand is water
18:43 <@qwertydawom> so, now, let's "invent" binary trigrams
18:43 <@qwertydawom> so, we say that a "full line" is 1
18:43 <@qwertydawom> and a "cut line" is 0
18:44 <+mu-tiger> k
18:44 <@qwertydawom> we have :
18:44 <@qwertydawom> (I do all possibilities)
18:44 <@qwertydawom> 000 -> air
18:45 <@qwertydawom> 001 -> steam
18:45 <@qwertydawom> 010 -> fire
18:45 <@qwertydawom> 011 -> thunder
18:45 <@qwertydawom> 100 -> wind
18:45 <@qwertydawom> 101 -> water
18:45 <@qwertydawom> 110 -> mountain
18:45 <@qwertydawom> 111 -> earth
18:46 <@qwertydawom> on the korean flag, we have :
18:46 <@qwertydawom> 000, 010, 101 and 111.
18:46 <@qwertydawom> now, if we convert them to decimal, we get :
18:46 <@qwertydawom> 000 = 0
18:46 <@qwertydawom> 010 = 2
18:47 <@qwertydawom> 101 = 5
18:47 <@qwertydawom> 111 = 7
18:47 <@qwertydawom> so that, every diagonal of the flag has a sum equal to 7 :)
18:47 <+mu-tiger> ok
18:47 <@qwertydawom> heavan + earth : 0 + 7 = 7
18:47 <@qwertydawom> water + fire : 2 + 5 = 7
18:48 <@qwertydawom> 5 + 2 actually
18:51 <+mu-tiger> well
18:51 <@qwertydawom> So, with this eastern philosophy, our lecture will end. :)
