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Juan Francisco Martínez Cerdá

Juan Francisco Martínez Cerdá has written 53 posts for ICTsophy

Simple systems without necessarily simple properties

Robert May once said the following: Not only in research, but in the everyday world of politics and economics, we would all be better off if more people realised that simple systems do not necessarily possess simple dynamical properties.

Conditions for a fair democratic voting system

Speaking of democracy, now I speak of Arrow’s theorem. Suppose we want a democratic system that meets the following conditions: There will not be a dictator: a single person will not decide for everyone. We can order all the preferences of voters. The overall preference of the total of voters is supported, indeed, by people … Continue reading »

The huger the mob, and the greater the apparent anarchy, the more perfect is its sway

Here is a quote from Francis Galton, a father of the applied statistics in society: I know of scarcely anything so apt to impress the imagination as the wonderful form of cosmic order expressed by the “Law of Frequency of Error”. The law would have been personified by the Greeks and deified, if they had … Continue reading »

Science, knowledge and wisdom

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom. Isaac Asimov

Twitter and the revolution in Egypt

And here we see another example with which to analyze facts and events differently:   I’m already using the software that allows this type of analysis: SoNIA – Social Network Image Animator

Your country from the rest with your point of view

Many sources of statistical information can classify different countries and establish rankings. But the most important ranking is given for what you value more: labor, environment, health, etc. We now have a tool to view it: Your Better Life Index, de la OCDE.

visualizing.org

http://www.visualizing.org/visualizations/europes-energy

Impossible motion…

Impossible motion: magnet-like slopes

All men dream: but not equally…

All men dream: but not equally. Those who dream by night in the dusty recesses of their minds wake in the day to find that it was vanity: but the dreamers of the day are dangerous men, for they may act their dreams with open eyes, to make it possible. Lawrence de Arabia

Internet and the democracy…

My friend says… Will the Internet that finally spread democracy, and not Bush? Will Activism 2.0 develope which was invented in ancient Greece in 500 BC? Can we empirically demonstrate that Internet and ICT help to develop the democracy? Mmmnnnnn… You can read this book: “The Digital Origins of Dictatorship and Democracy. Information Technology and … Continue reading »

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