"obsolete knowledge" is correct and usable in written English.
You could use it to describe knowledge that is no longer relevant or applicable due to changes in technology or shift in the overall understanding of a given area of study. For example, "The encyclopedia contained much obsolete knowledge, as it had been published decades prior and scientific advancements had since superseded many of its claims."
The Tofflers, whose penchant for neologisms remains unabated, spend much time discussing the booming "prosumer economy" (which involves unpaid work that nevertheless greatly increases quality of life; for example, cooking a lavish meal for friends or much of open-source computer coding) and fretting over "obsoledge" (obsolete knowledge).
This study explores the following question: How can managers overcome knowledge loss or degradation and/or replace obsolete knowledge to stimulate the realized absorptive capacity in the Spanish hospitality sector in particular and organizations in general?
If you worry too much about being up-to-date, you miss out on vast territories of obsolete knowledge just waiting to be reclaimed.
Consciously or unconsciously, they will be inclined to resist changes that render their knowledge obsolete.
One room is filled with books, much of their knowledge rendered obsolete by technological advances; in another, a series of equations – all measuring change – are being painstakingly written on a wall; and in a third, old lab coats and used coffee cups lie around, traces of those who once worked here.
If a graduate's knowledge is obsolete within five years, then there must be a huge market for continuing education.MICHAEL DOWLINGBraunschweig,GermanySIR--You draw a contrast between the regenerative capacity of high-tech industries in the valley and the decline of tyre manufacturing in Akron, Ohio.
"Knowledge becomes obsolete when the world changes.
During his career, Nemeth also remained current with technology, first developing a Braille slide rule and then realizing that his "training and skills would soon become obsolete unless I acquired knowledge and skill in computer science".
3 -- Knowledge is obsolete.
Second, when you accelerate changes in technology and society, by definition you accelerate the rate at which knowledge becomes obsolete.
Therefore, bankers have to realize the importance of investing in different channels other than the basic activities which have become obsolete in the current knowledge-based society.
