There was a recent book review in the Guardian (http://ift.tt/1y6g6Jc) that touched on this.
Assuming that our memory can be ‘trained’, and a quick search on Google Scholar supports this hypothesis, then I agree with you that our memory capacity is suffering. But, is this a bad thing if we are able to enhance an ability through technology? Or, thinking it through to the logical conclusion, will the lack of ‘memory exercise’ lead to increased rates of dementia in later life, or will the ability to relive our memories through recordings preserve our mental processes?

from Comments for Ben’s EDC blog http://ift.tt/1zIGT1x
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