In InnerSpace and my protological concept formation, ideas are not abstractions. They are logical constructs — real, structural entities in the architecture of existence. They are higher-order constructs made of concepts. An idea is thus not a primitive or gaseous entity, but a configuration, a structured, logical arrangement of concepts. Ideas are the thought-objects of the universe — but they are made of the same substance as matter, because matter itself is conceptual. To be a bit more Hegelian, although with a much better understanding of the concept of idea, an idea is a massless object.