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-Introduction
-************
+What is SimGrid
+***************
 
-.. include:: intro_concepts.rst
+SimGrid is a framework to simulate distributed computer systems.
 
-.. include:: intro_install.rst
+It can be used to either assess abstract algorithms or to profile and
+debug real distributed applications.  SimGrid enables studies in the
+domains of (data-)Grids, IaaS Clouds, Clusters, High Performance
+Computing, Volunteer Computing, and Peer-to-Peer systems.
+
+Technically speaking, SimGrid is a library. It is neither a graphical
+interface nor a command-line simulator running user scripts. The
+interaction with SimGrid is done by writing programs with the exposed
+functions to build your own simulator.
+
+SimGrid is a Free Software distributed under the LGPLv3 license. You are
+thus welcome to use it as you wish or even to modify and distribute
+your version (provided that your version is as free as ours). It also
+means that SimGrid is developed by a vivid community of users and
+developers. We hope that you will come and join us!
+
+SimGrid is the result of almost 20 years of research from several
+groups, both in France and in the U.S.A. It benefited of many funding
+from various research bodies, including the ANR, Inria, CNRS,
+University of Lorraine, University of Hawai'i at Manoa, ENS Rennes, and
+many others. Many thanks to our generous sponsors!
+
+SimGrid is a powerful tool, but its learning curve can be rather
+steep. This manual will hopefully help and guide you to the features
+you want to use. Please report any issue that you see in this manual,
+including typos or unclear elements. You can even propose changes by
+clicking on the "Edit on GitLab" button at the top of every page.
 
-.. include:: intro_yours.rst