25 things you might not know about the web

The importance of "permissionless innovation"

The thing that is most extraordinary about the internet is the way it enables permissionless innovation. This stems from two epoch-making design decisions made by its creators in the early 1970s: that there would be no central ownership or control; and that the network would not be optimised for any particular application: all it would do is take in data-packets from an application at one end, and do its best to deliver those packets to their destination.
It was entirely agnostic about the contents of those packets. If you had an idea for an application that could be realised using data-packets (and were smart enough to write the necessary software) then the network would do it for you with no questions asked. This had the effect of dramatically lowering the bar for innovation, and it resulted in an explosion of creativity.
What the designers of the internet created, in effect, was a global machine for springing surprises. The web was the first really big surprise and it came from an individual – Tim Berners-Lee – who, with a small group of helpers, wrote the necessary software and designed the protocols needed to implement the idea. And then he launched it on the world by putting it on the Cern internet server in 1991, without having to ask anybody's permission.

The web is not the internet

Although many people (including some who should know better) often confuse the two. Neither is Google the internet, nor Facebook the internet. Think of the net as analogous to the tracks and signalling of a railway system, and applications – such as the web, Skype, file-sharing and streaming media – as kinds of traffic which run on that infrastructure. The web is important, but it's only one of the things that runs on the net.

The importance of having a network that is free and open

The internet was created by government and runs on open source software. Nobody "owns" it. Yet on this "free" foundation, colossal enterprises and fortunes have been built – a fact that the neoliberal fanatics who run internet companies often seem to forget. Berners-Lee could have been as rich as Croesus if he had viewed the web as a commercial opportunity. But he didn't – he persuaded Cern that it should be given to the world as a free resource. So the web in its turn became, like the internet, a platform for permissionless innovation. That's why a Harvard undergraduate was able to launch Facebook on the back of the web.

Many of the things that are built on the web are neither free nor open

Mark Zuckerberg was able to build Facebook because the web was free and open. But he hasn't returned the compliment: his creation is not a platform from which young innovators can freely spring the next set of surprises. The same holds for most of the others who have built fortunes from exploiting the facilities offered by the web. The only real exception is Wikipedia.

Tim Berners-Lee is Gutenberg's true heir

In 1455, with his revolution in printing, Johannes Gutenberg single-handedly launched a transformation in mankind's communications environment – a transformation that has shaped human society ever since. Berners-Lee is the first individual since then to have done anything comparable.

The web is not a static thing

The web we use today is quite different from the one that appeared 25 years ago. In fact it has been evolving at a furious pace. You can think of this evolution in geological "eras". Web 1.0 was the read-only, static web that existed until the late 1990s. Web 2.0 is the web of blogging, Web services, mapping, mashups and so on – the web that American commentator David Weinberger describes as "small pieces, loosely joined". The outlines of web 3.0 are only just beginning to appear as web applications that can "understand" the content of web pages (the so-called "semantic web"), the web of data (applications that can read, analyse and mine the torrent of data that's now routinely published on websites), and so on. And after that there will be web 4.0 and so on ad infinitum.

Power laws rule OK

In many areas of life, the law of averages applies – most things are statistically distributed in a pattern that looks like a bell. This pattern is called the "normal distribution". Take human height. Most people are of average height and there are relatively small number of very tall and very short people. But very few – if any – online phenomena follow a normal distribution. Instead they follow what statisticians call a power law distribution, which is why a very small number of the billions of websites in the world attract the overwhelming bulk of the traffic while the long tail of other websites has very little.

The web is now dominated by corporations

Despite the fact that anybody can launch a website, the vast majority of the top 100 websites are run by corporations. The only real exception is Wikipedia.

Web dominance gives companies awesome (and unregulated) powers

Take Google, the dominant search engine. If a Google search doesn't find your site, then in effect you don't exist. And this will get worse as more of the world's business moves online. Every so often, Google tweaks its search algorithms in order to thwart those who are trying to "game" them in what's called search engine optimisation. Every time Google rolls out the new tweaks, however, entrepreneurs and organisations find that their online business or service suffers or disappears altogether. And there's no real comeback for them.

10 The web has become a memory prosthesis for the world

Have you noticed how you no longer try to remember some things because you know that if you need to retrieve them you can do so just by Googling?

11 The web shows the power of networking

The web is based on the idea of "hypertext" – documents in which some terms are dynamically linked to other documents. But Berners-Lee didn't invent hypertext – Ted Nelson did in 1963 and there were lots of hypertext systems in existence long before Berners-Lee started thinking about the web. But the existing systems all worked by interlinking documents on the same computer. The twist that Berners-Lee added was to use the internet to link documents that could be stored anywhere. And that was what made the difference.

12 The web has unleashed a wave of human creativity

Before the web, "ordinary" people could publish their ideas and creations only if they could persuade media gatekeepers (editors, publishers, broadcasters) to give them prominence. But the web has given people a global publishing platform for their writing (Blogger, Wordpress, Typepad, Tumblr), photographs (Flickr, Picasa, Facebook), audio and video (YouTube, Vimeo); and people have leapt at the opportunity... read more:

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