I don't want to speak for Chris, but here's how I read his stuff: Heidegger is talking about first person experience in the context of how it has been defined in Cartesian terms. IOW, in the context in which Chris is talking, Heidegger is addressing the impact of phenomena on an individual. This is not to be interpreted that Heidegger thinks the individual comes first or that he (human in gneral) is the measure of things (so to say, though IIRC Heidegger[ians] have a very different analysis of Heraklitos). In a way, IMHO, if you buy into it, he resolves the disparate frameworks of Cartesian idealism (I think therefore the world and phenomena exist) and realism/rationalism (things exist independent of me). I am out on a philosophical amateur's limb here, but I hope I am guilty of no more error than misuse of labels.
--ravi
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