Page last updated at 10:35 GMT, Wednesday, 2 April 2008 11:35 UK By 2020 the terms "interface" and "user" will be obsolete as computers merge ever closer with humans. It is one prediction in a Microsoft-backed report drawn from the discussions of 45 academics from the fields of computing, science, sociology and psychology. It predicts fundamental changes in the field of so-called Human-Computer In