Very interesting. 
I had been hoping for a Philip K Dick thread here which I might comment on, and here it is.
Interesting to me this perspective of his, as my understanding of him, later in life, anyway, was of someone who was kind of stuck in two different worlds… and in a most unfortunate way. This said, for me, this is a deeply ironic statement to come from PKD.
My pet theory is that PKD has influenced a very wide range modern of television and cinema in a specifically rather odd, but important way: his stories fleshed out a model which involved individuals operating in two very different realities, where both realities are real, but in some conflict with each other.
So, I view his work as being instrumental in influence in much the way today so many stories are being told in cinema. While most heavily influencing modern fiction and science fiction, I believe his work has also deeply influenced many areas of fiction which have no ties to fantasy or science fiction, at all.
In a sense, I credit him then with having fleshed out a very successful sort of metamodel for storytelling which other writers could take from and apply to their own stories to add considerable realism, by contrasting the individual in definition apart from the realities and reality conflicts they found themselves in… and so giving a model for more realistically defining both the character and the worlds in which they interact in.
