Herein lies the problem: everyone who asks these questions thinks they have discovered the way things are and that everybody else is wrong. If this argument is nothing more than a statement of the way the world is, it is not worth reading. Otherwise, it must proposes several "oughts" which modify its meaning past describing what "is," and in my opinion you have then failed to eliminate metaphysics and/or phenomenology.
I'm not defending David's writing as being overly original-most of it is old Buddhist thought. I do, however, think it's important that people today be thinking, writing, and discussing these topics. Many of the worlds problems are related to cognitive development and a lot of us are left floundering when we run into the limits of our institutional education.
Postmodernism as a canon is almost too powerful for its own good, which is ironic in that each of the individual writers almost aspire to powerlessness in their desire to eliminate modernist structures of domination. There have been a few times in my life where I could literally feel my perspective on the world shifting to a higher mode in an instant, the first was with Sartre, and the most recent was with Foucault. Approaching it at the right time and with the right teachers can fucking change your world, but the process to get there is heavily individualized and I fear perhaps can't be standardized. If you don't arrive willing to accept the ideas as divers furtherances on your own conceptualizations, you will reject it as nihilism.
I'm not sure that makes any sense at all: silly language
Anyway, the thing I'm curious about, have you read House of Leaves? I always explain the book to people as something that exploded my senses of (traditional) scientific certainty and then I went on a huge voyage of pomo, Wittgenstein etc. It also showed me in an intensely terrifying way how fluid in concept my mind could be, something like 'The eternal silence of these infinite spaces terrifies me (Pascal)'.
And if that makes him cry, I'm OK with that. Consider it retribution for all the junk he's shoveled out.
I can't do his ideas justice, but the path of postmodernism is essentially a form of nihilism that must be broken through to a new level of meaning-making. That is to say, a modern level of development believes there are self-evident truths. postmodern would say that all truths are relative, without basis. An integral or construct-aware level would have insight into meaning-making itself and be able to create "solid" values out of nothing - essentially a post-nihilism.
I don't think theres good language for these stages, so I'm just using "construct aware" from Susan Cooke-Greuter:
http://newpossibilitiesassociates.com/uploads/9_levels_of_in...