An addendum to our addendum.

Mikkel Bolt has a long and differently oriented critique of Hardt and Negri in the essay 'What is to be Done?' - Approaching the task through Debord and Negri. There is some overlap of our concern regarding immaterial labor to be found in this quote:

"...it is astonishing how easy it is for them to filter out all the specificities and discriminants within the multitude, keeping only their common attribute as embodiment of immaterial labour. Their analysis is grounded in dogmatic axioms that are positivistic reifications of Marxist theory, which it is hard to defend. Notions such as ‘class’, ‘worker’ and ‘state’ becomes uncritically accepted abstract categories which hide the present in theoretical garments of yesterday [empahsis ours]..."

Sounds an awful lot like the rear-view mirror...