Suppose, if you will, that on July 28, 1914, when everyone heard that the Archduke Franz Ferdinand and his wife Sophie had been shot that they promptly stopped what they were doing and sent a telegram to the governments of Austria-Hungary and Serbia simply saying — No war. And that all of these telegrams could be seen at the same time on a small book that you carried around in your pocket.
Could ten million lives had been saved?
Would the war to end all war had never happened?

Imagine if you will a place where all the telegraph lines allowed all to communicate with one another at the same time. You can share the most important and interesting information of the day. Better yet you can share photographs as well. You can choose who to read from and who will read from you. Your thoughts can be broadcasted for the whole world to see. You can use special symbols to make your comments more unique and specialized to reach the appropriate audiences. 
Why would need such a thing as twitter? It allows all of us to connect and share knowledge like never before. Endless amounts of educational material can spread instantaneously, which expands all of own knowledge and betters society. However, there are certain downfalls to such creations. Vast amounts of worthless information can spread just as fast and reach larger audiences. That information is what will destroy the creative minds that once stood here in the far future. But believe me when I say that the good most certainly outweighs the bad.

.. – / .. … / .-.. .. -.- . / – …. . / – . .-.. . –. .-. .- .–. …. .-.-.- / -.– — ..- / … . -. -.. / .- / — . … … .- –. . / .. -. / .—- -…. —– / -.-. …. .- .-. .- -.-. – . .-. … / .- -. -.. / .. -. / -.-. — -.. . / -.-. .- .-.. .-.. . -.. / …. .- … …. – .- –. …
You can translate the code here: http://bit.ly/1xt1fYe

… Webster’s Dictionary (1912) defines “twitter” as:
“n.	1.	One who twits, or reproaches; an upbraider.

v. i.	1.	To make a succession of small, tremulous, intermitted noises.

[imp. & p. p. Twittered ; p. pr. & vb. n. Twittering.]

The swallow twittering from the straw-built shed.

– Gray.

2.	To make the sound of a half-suppressed laugh; to titter; to giggle.

3.	To have a slight trembling of the nerves; to be excited or agitated.”
Reproaching an upbraider with a succession of small, tremulous, intermitted noises – stifling a half-supressed laugh whilst being excited or agitated.
Seems about right.

Hey!
You like to make phone calls, right?!
Would you like to tell more than one person what you are doing?
Would you like to do this the same way you send out Christmas cards or Wedding announcements?
Would you like to do this daily??
For free??
Then we have the thing for you.
Welcome to twitter!
Twitter will let you “tweet” things as if you were sending out a letter to every one of your friends. They “follow” or monitor your posts on their own “feeds.”
It works like this.  You can write a short message (140 alpha-numeric letters (even special ones like  !#$?*) and post it.  For now, let’s just say it goes through the air like magic using your device.
Once it goes into the air, your friends can “catch” it using devices and read what you said!  These ingenious devices work kind of like a phone.  Except there are no wires.
Don’t worry, it won’t hurt you!  It is completely safe!
Now you can always know what your friends are doing.  You can also tell them what you are doing!
Enjoy!

What if i told you don’t have to be the only person that know that you are sitting in a room listening to the radio?

Why would you want people to know that information you ask?. Well… just because.

So there is this website called twitter where you can post what you are doing and then everybody who wants to know what you are doing at this time would know. Remember that joke you told me? well you can post it on twitter and people can laugh and “retweet” it on their page and their followers can laugh as well. Speaking of followers; so when people come on your page and they see and like what you posted, they click on a button to “follow” you and that way they will be informed once you post a new tweet.

GRANDFATHER TALKING TO GRANDSON
Well, in the beginning of the 21d century, around 2015, many people in the world were connected electronically through wires and through magneto-electric beams.
We called this the INTERNET and it made it possible to share lots of information together like books, movies, photos, audio-files.
Then there also was this thing Twitter which allowed us to exchange a couple of characters. To use it we had to narrow down our message into less than 164 characters.
[ GRANDSON ASKS QUESTION ]
Why we didn’t just send the whole text-file, or the movie or picture?
Eh, good question …