It is just what can not be eliminated from system,there is no comparison can be made between new developed techonology and manual activities. Atleast human understanding can have a common with human first than machine. Just think when you get one detailed business proposal on e mail how carefully you read it and respond it. So face to face communication is one which can never be replaced, specially when it comes about sensitive issue like performance, motivation, counseling and guidance. I don't know how many people realize the vision and mission of their organization when they read it in any document.
