Siemens (2005a) suggests learning that can reside outside the individual learner, is focused on connecting specialised information sets and the connections that enable us to learn more than our current state of knowing. According to Siemens, the main intent of network creation is to enable learners to continue to stay current in the face of rapidly developing knowledge. Siemens (2005a, 2006a) points out that the half-life of knowledge is shrinking. The half-life of knowledge is the time span from when knowledge is gained to when it becomes obsolete (Gonzalez, 2004). Siemens (2006a) writes: “In today’s world, knowledge life is short; it survives only a short period of time before it is outdated”
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