It would be amusing to compile evidence in favor of the proposition that continental philosophy recycles and mystifies the themes of earlier analytical philosophy, and even try to estimate the characteristic lag-time; but I doubt it would be anything more than amusing.
---Incidentally, while a number of contributors express surprise that Neurath doesn't fit the stereotype of positivism put forward by the Frankfurt School during the so-called ``Positivism Debate'' in German sociology, as indeed he does not, none seem to have been lead by this to doubt the general soundness of that stereotype. (For a caustic critique, see the chapters on Marcuse and the Frankfurt School in vol. III of Leszek Kolakowski, Main Currents of Marxism.)