"TRANSIENT. NULLSOURCE. NULLTYPE." indicates an event of brief duration (in this case 0.3 seconds) of unknown composition from an unknown source. "Deep Structure" is a linguistic term used to define and unite one or more linguistic/syntactic structures. NP-Hard means "Non-deterministic Polynomial-time hard". The term comes from theoretical computer science's theory of computational complexity. The underlying basis is that any computational problem is one that can be analyzed and solved by a computer or otherwise by mechanical implementation of computational steps, such as an algorithm. A problem that is "NP-Hard" is at least as difficult as the hardest problem in Non-deterministic Polynomial time. "TCC" could indicate a certain complexity class for the Event. In its simplest terms, "Acausal" indicates that there are no known underlying phenomena in the vicinity, natural or otherwise, that could account for the "Event". All of this, coupled with the "Inimicable" and "Directed" nature of the "Event" indicates that something suddenly appeared in deep space, outside the bounds of our solar system, accompanied by an extremely brief, powerful and complex energy signature of unknown composition. It was determined that this "Event" was deliberately directed toward us with hostile intent. "SOLSECCENT" Is likely an title acronym for the AI in charge of the SECurity forces for the CENTral SOLar System, in much the same way that COMSUBPAC stands for COMmander of SUBmarine fleet: PACific, etc. "OCP" comes from the "Culture" series by Iain Banks. It stands for "Outside Context Problem", which means a problem that is not (indeed cannot be) considered until it occurs. It is the kind of problem "most civilizations would encounter just once, and which they tended to encounter rather in the same way a sentence encountered a full stop." This scenario led Rasputin to initiate emergency protocols "VOLUSPA" (The Völuspá is the Norse Poetic Edda that deals with the creation of the world, as well as Ragnarök) and YUGA (Derived from the Hindu concept of 4 Ages ranging from the Golden Age to the Dark Age or Age of Strife). The Battle of Carrhae was one of the most humiliating defeats suffered by the Romans, in which a full 7 legions of Roman troops (nearly 50,000 in number) lost 3/4 of their number against a much smaller force of 11,000 Parthians.