Albert Camus and the sense of freedom

This is a broad topic, of course, but an important one. Camus and Sartre seem to share the supposition that freedom is just as much a (if not more so) profoundly negative reality as it is positive. The complete isolation of the Cartesian ego (the 'I think') is forever banished from any meaningful context from which it can derive meaning. Sure, this means that no context can impose itself upon the ego, but it also means that there is no meaning at all. Freedom is a paradox, in this sense, for Camus.