Thursday, 25 November 2010

Uninformation

In an effort to understand what exactly it is that a 'byte' measures in computing from out of the generalised term, 'data' I discovered this wonderfully abstract sentence - highlighted below in blue:

"A key measure of information in ‘information theory’ is known as entropy, which is usually expressed by the average number of bits (and nibbles) needed for storage or communication.

"Intuitively, entropy quantifies the uncertainty involved when encountering a random variable. For example, a fair coin flip (2 equally likely outcomes) will have less entropy than a roll of a die (6 equally likely outcomes)."

....and scientists accuse astrologers of being away with the fairies! And try this one (from Wikipedia):

"Cyberspace is the electronic medium of computer networks, in which online communication takes place. It is the domain of electromagnetics readily identified with the interconnected information technology required to achieve the wide range of system capabilities associated with the transport of communication and control products and services. Current technology integrates a number of capabilities (sensors, signals, connections, transmissions, processors, and controllers) sufficient to generate a virtual interactive experience accessible regardless of a geographic location....."

Here is another favourite (from here) :

"What is electricity? This question is impossible to answer because the word "Electricity" has several contradictory meanings. These different meanings are incompatible, and the contradictions confuse everyone. If you don't understand electricity, you're not alone. Even teachers, engineers, and scientists have a hard time grasping the concept.

"Obviously "electricity" cannot be several different things at the same time. Unfortunately we have defined the word Electricity in a crazy way. Because the word "electricity" lacks one distinct meaning, we can never pin down the nature of electricity. In the end we are forced to declare that there's no such stuff as "electricity" at all! "

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