Why would a complete map of the world not tell me “I am here”?
A map can identify every person and place without connecting its reader to one particular entry. That missing relation is self-locating knowledge. OPH treats an observer's perspective as a real part of the world's organization: a record belongs to a particular continuing system and changes what that system does next. Knowing the description of an experience is likewise different from undergoing its occurrence. Mary can know a complete account of color vision before her own system first enacts seeing red. The claim is not that an impersonal description must omit all relational facts. It is that receiving a description and occupying the described position are different relations to the same world.
See also What does Mary learn when she first sees red?, How do I know other minds exist?, Is reality objective or subjective?
Also in Chapter 40: Does It Feel Like Anything, and What Is Left to Decide?.
This answer comes from OPH, Observer Patch Holography. OPH is a rigorous, consistent and complete description of the unified, self-creating computational Universe we inhabit. Its consistency is machine-checked: the fixed point at its core is constructed explicitly, and a theory with a model contains no contradiction.
To understand OPH and check every step yourself, start with the free book Reverse Engineering Reality. It builds the theory from the ground up, and the OPH Notebook answers your questions while you read.
read the free bookask the notebookor ask sage:read chapter 5: Why Do You and I See the Same Table?watch a universe make its own particles