WELCOME TO The 21st. Century Challenge!

The advent of a new millenium -- be it 2000 or 2001 does not matter much -- is a good moment to reflect in big questions that remain hidden from everyday's concerns.

Most of them are due to the fact that, while science advances at an amazing speed, because scientists have found the right research method, other fields of human knowledge do not show a corresponding improvement.

In this site we will try to expose ideas and opinions that are not published in ordinary press with the attention they deserve.

We cannot begin the 21st. Century with 19th. Century ideas

Today we begin wit quite a few ones. We expect this site to grow with the contributions of everyone interested.

19th. Century economic theories .................. Click here.

The Ozone Hole, Mith or Reality? .................. Click here.

Los carteles del subte de Buenos Aires .................. Click here.

De números de teléfono -- About telephone numbers........ Click here.

Infracciones y Delitos -- Offenses and Crime........ Click here.

Beaumarchais dixit........ Click here.

Las altas cumbres que dividen las aguas .......Click here.

The highest peaks that divide waters.......Click here.

Cómo se deben equilibrar las finanzas públicas en un régimen liberal.......Click here.