This chapter examines the study the problem not only because it is beautiful and deep, and it puts the invention of 'space' into a new perspective. By studying the way earlier cultures came to their concepts of space, one begin to see how fragile and strange our own concept is. Certain sects of philosophers once dismissed these old debates in philosophy as mere 'pseudo-problems'. Aristotle's arguments and his enormous authority meant that 'space' was frequently considered to be an entirely incoherent notion during much of the next 2,000 years. One argument for the reality of the occupancy relation relies on the Truthmaker Principle, which simply asserts that if some sentence is true, then something makes it so. This is a useful way to express the transition from truths we know to assertions about reality, that is, from epistemology to metaphysics.