Plot hole: When Cutter is talking to Doc while he's in innerspace, he asks Doc how long he's been there, and Doc responds,"About three seconds." Cutter has been there for a lot longer, so he exclaims, "Three seconds?!", and Doc replies, "An hour to you is a second out here." The problem with this is that they are both conversing at a normal rate. If Doc's statement rings true, they wouldn't be able to have a conversation like that because Cutter would appear to be talking incredibly slowly, and Doc would appear to be talking at light speed.
Knever
17th Jan 2011