ch11.networks
DESCRIPTION
From Revolutions in Communciation -- revolutionsincommunication.comTRANSCRIPT
Brief lectures in
Media History
Chapter 11Networks (14 of 15)
This lecture is about Networks and the WWW How the vision preceded the techWho missed the ‘curve in the road’ Early attempts at wysiwyg networks
◦Particularly noteworthy: Minitel Cyberspace independence &
network neutrality Browser wars How networks are valued
Early networks
H.G. Welles, sci-fi author “Both the assembling and the
distribution of knowledge in the world at present are
extremely ineffective... [We] are beginning to realize that the most hopeful line for the
development of our racial intelligence lies rather in the
direction of creating a new world organ for the
collection, indexing, summarizing and release of knowledge, than in any
further tinkering with the highly conservative and
resistant university system.” -- 1937
Vannevar Bush, 1949 “Consider a future device for individual use, which is a sort of mechanized private file and library... A “memex” is a device in which an individual stores all his books, records, and communications [which] may be consulted with exceeding speed and flexibility....Wholly new forms of encyclopedias will appear, ready made with a mesh of associative trails running through them... There [will be] a new profession of trail blazers... who find delight in the task of establishing useful trails through the enormous mass of the common record.”
J.C.L. Licklider, 1960 “It seems reasonable to
envision, for a time ten or fifteen years hence, a
thinking center that will incorporate the functions of
present day libraries together with anticipated advances in information
storage and retrieval. … An ‘intergalactic
network’ in which … everybody could use
computers anywhere and get at data anywhere in the
world.
Martin Greenberger, 1964 “Barring unforeseen obstacles, an on-line interactive computer service, provided commercially
by an information utility, may be as commonplace by 2000 AD as
telephone service is today. By 2000 AD man should have a much better comprehension of
himself and his system, not because he will be innately any
smarter than he is today, but because he will have learned to
use imaginatively the most powerful amplifier of intelligence
yet devised.”
The Computers of Tomorrow,” Atlantic Monthly, May 1964.
Ted Nelson, 1981 “Forty years from now -- if the human species survives -- there will be hundreds of thousands of files servers. And there will be hundreds of millions of simultaneous users. All this is manifest destiny. There is no point in arguing it. Either you see it or you don't.”
(Literary Machines, 1981).
Timeline 1930s – 50s -- Visionaries
◦Welles, Bush, Licklider, Greenberger 1958 – US reacts to Russia’s Sputnik
◦Russian satellite program 1968 – First network protocol 1973 – TCP/IP, Ethernet
◦AT&T turns down network mgmt 1980s – Bitnet, NSFNet, Minitel (Fr.),
Teletext (UK), CompuServ, Prodigy, America On Line
1989 – Tim Berners Lee WWW 1993 – NCSA ‘Mosaic’ Web browser
Information utility, 1984
UK 1980s, inside TV signal
Prodigy, US late 1980s
Minitel, 1980s-90s, France
AOL used pre-loaded graphics
Tim Berners-Lee & the WWW
No ‘eureka’ moment -- The idea grew
over the years as he worked at CERN
“Suppose all the information stored
on computers everywhere was
linked.” WWW first proposed
in 1989, introduced over next four years.
Berners-Lee first web page 1989
Mosaic: First free browser, 1993
"By the power vested in me by nobody in particular, alpha/beta version 0.5 of NCSA's Motif-based networked information systems and World Wide Web browser, X Mosaic, is hereby released...”
Saturday, 23.01.1993, 07:21 CST USA
From University of Illinois supercomputing center.
Marc Andreessen, leader of Mosaic development team
Mosaic (later Mozilla, Firefox)
First news web page, 1994
Note that graphics, although primitive, do not have to be pre-loaded any more.
Cyberspace Independence, 1996
John Perry Barlow“Declaration of Cyberspace Independence,” 1996
Governments of the Industrial World, you weary giants of flesh and steel, I come from Cyberspace, the new home of Mind. On behalf of the future, I ask you of the past to leave us alone… I declare the global social space we are building to be naturally independent of the tyrannies you seek to impose on us. You have no moral right to rule us nor do you possess any methods of enforcement we have true reason to fear...
Web freedom: Reno v ACLU, 1997 US Congress passed Telecom Act 1996
-- Strict rules against web indecency
Case went to court as Reno v ACLU Court sided with free expression, said
the web would be fully protected like print, not regulated like broadcasting.
“The interest in encouraging freedom of expression in a democratic society outweighs any theoretical but unproven benefit of censorship.”
The ‘dot com’ bubble of 2000
Amazon.com founded 1994
• “Long-tail” book marketing served many small niche
customers.
• Believed that the volume of all the low
popularity items can be greater than a few
highly popular items.
• Near $75 billion, 2013
• Purchased Washington Post
newspaper in 2013
Amazon founder, Washington Post owner Jeff Bezos
Long tail marketing Zipf's Law
◦ If we order some large collection by size or popularity, the second element in the collection will be about half the measure of the first one, the third one will be about one-third the measure of the first one, and so on.
◦ In general, the k th-ranked item will measure about 1/ k of the first one. (Power law probability distribution)
◦Ex -- out of one million books, the most popular 100 contribute a third of the total value, the next 10,000 another third, and the remaining 989,900 the final third.
Google founder Sergei Brin
• Stanford students Larry Page and Sergey Brin, started research on the link structure of the World Wide Web. In the process, they created a search engine that would become Google by 1998.
• Improved browser search based not just on incidence of search terms, but rather, incidence of links to that page.
• Revenue $60 billion in 2013
“There are sound reasons for traditional media to fear Google.” Ken Auletta, 2009 book on Google.
Sergei Brin, Google founder
Browser wars
Browser wars
Laws of network value 1 Sarnoff’s law (David Sarnoff, RCA
president, NBC chairman) Conventional broadcasting
◦ Value for the number of people in audience.
◦ A network of 10 is only twice as valuable as a network of 5.
◦ Linear growth model ◦ Under-values network users because it is
a one-way transmission model.
Laws of network value 2 Metcalfe’s law — Quadratic model
(Robert Metcalfe, inventor of Ethernet / built on Moore’s Law ) ◦ A network is valuable to the square of the
number of users. ◦ A network of 10 is four times more
valuable than a network of 5 (e.g., 5x5=25; 10x10=100).
◦ Theoretically, costs, in contrast, grow linearly.
◦ Although network value grows on a more than linear basis, its not quadratic growth.
Laws of network value 3Reed’s law — Digital model (David P.
Reed software engineer) ◦ A networks’ value doubles every time a user
is added ◦ A network of 5 users would have a value of
32, while 6 would be 64, and 10 = 1,024 ◦ Not very intuitive – Network of 50,010
people isn’t worth a thousand times more than a network of 50,000.
◦ Over-values network users.
Laws of Network Value 3Beckstrom’s law applied business model
◦A network is valuable for the way it saves on the costs of transactions.
◦The money a person saves in a network transaction is the value of that network to the user.
◦EG - If a book costs $25, but it can be purchased for $15 on a network, then the network is worth $10 to that person based on that one transaction.
◦The overall value of the network is how it saves money in all transactions.
Network neutrality Different rates & access was a major issue
with telegraph & telephonesLaws in EU prohibit discrimination but
allow various costs under “Five directives”
US – ISPs can now slow services ◦FCC Directive 2005, customers entitled to ”Any
lawful content, any lawful application, any lawful device, and any provider.” Overridden by:
◦Verizon v FCC, 2014, court ruled FCC has no authority to enforce net neutrality rules
Networks Most users can’t take advantage
of entire network. ◦User value tends to plateau◦Then users divide up into sub-
networks Networks must facilitate
innovation ◦Or they will face circumvention
Closed networks fail ◦(MySpace.com, for example)