Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Can you know what you don't know?

This text goes into incredible depth analyzing the disk drive and earthmoving industries and is very useful in drawing conclusions on managing disruptive technologies. In managing disruptive technology, his prescriptions are quite valid; however, overcoming the hurdle of "not knowing what you don't know" can be so daunting that no action can overcome it. The book is very useful in describing the issue and positioning a business for change given the limitation stated above.