Microsoft should brace for a user backlash against Windows 8 that will make the company pine for the days of Clippy, according to usability expert Raluca Budiu of the Nielsen Norman Group. During an interview with Laptop Magazine, Budiu said that the billion-plus users around the world who have become accustomed to Windows will experience massive difficulties adjusting to the new Windows 8 user interface, going so far as to call the new UI “a cognitive burden.” Budiu’s criticisms of Windows 8 are ones that have been often cited in the past. Read the full story at Boy Genius Report.