initial explanation of motivation for torrent protocol

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+torrent protocol can be used to distribute large, read-only files efficiantly if you
+allready have shared copies on faster local network (home LAN for example).
+
+You can also think of this feature as nice desister recovery solution if you want to have
+multiple copies of your data somewhere in the cloud, and use aggregate download bandwith
+which is useful if you try to recover using asymetric ADSL network connections.
+
+