For Pynchon, ours is the age of plastics and paranoia, dominated by the System. No one is going to dispute such a conviction; reading the New York Times first thing every morning is sufficient to convince one that not even Pynchon’s imagination can match journalistic irreality. What is more startling about Pynchon is that he has found ways of representing the impulse to defy the System, even though both impulse and its representations always are defeated. In the Zone (which is our cosmos as the Gnostics saw it, the kenoma or Great Emptiness) the force of the System, of They (whom the Gnostics called Archons), is in some sense irresistible, as all overdetermination must be irresistible. Yet there is a Counterforce, hardly distinguished in its efficacy, but it never does (or can) give up. Unfortunately, its hero is the extraordinarily ordinary Tyrone Slothrop, who is a perpetual disaster, and whose ultimate fate, being “scattered” (rather in biblical sense), is accomplished by Pynchon with dismaying literalness. And yet—Slothrop, who has not inspired much affection even in Pynchon’s best critics, remains more Pynchon himself.
From Harold Bloom’s introduction to Bloom’s Critical Modern Views: Thomas Pynchon.