Semantic spaces to refer to coherence that exists in the real world (as opposed to the digital world) but explicitly creating specification of the world-view that a particular semantics lives in, so as to take into account the "those animals which when seen at a distance appear as flies" problem.
What token is used as the semantic key that Semtrex matches on?:The index of a child entry in the symbol tree or a hash that's in a label table? To start with, we will use use index in the symbol tree with the trick of using negative numbers for structures (which have a single instance), positive number for symbols (which have many instances) and the first 1024 of them reserved for system level ones that are pre-coded for all receptors have access to (i.e. label, int, float, receptor, etc) via a "symlink" type approach.