Cooper (2002, p. 452) provides a quote from Callinicos (1999, p. 309), which states:

In the self contained university world, intellectual life is specialized and professionalized: academics, even those who think of themselves as political radicals, write for each other using an idiom which renders their work unintelligible to those outside.

Cooper (p. 452) then states:

In short, academics at the beginning of the twenty-first century write theoretical pieces, which hardly anyone reads, mainly for each other using impenetrable language.

Explain the ideas that Cooper is trying to project. Further, if we accept the view being promoted, does this diminish the ‘contribution’ of such researchers?