And before saying anything about this I should be clear about one point, by "early Heidegger" we mean the Heidegger of Being and Time and surrounding writings, not the brilliant earliest pre-Husserlian Heidegger who was doing interesting things in reaction to his teachers (the first 1919 formulation of Vorhandenheit/Zuhandenheit is in reaction to Rickert, who is discussed in this regard in History of the Concept of Time, but then the citation of the very same discussion is dropped in Being and Time), the Southwest School neo-Kantians, nor Heidegger right after that whose lectures of that period that spends 9/10ths of the time going through the ritualized dance of setting up the phenomenological verbiage. Being and Time is (among other things) a brilliant (though possibly inconsistent) working out of his earliest anti-neo-Kantian insights in the context of a very neo-Kantian Husserliana, the different interpretations above are all to some extent in reaction to the tensions between these two aspects.