Most broadly expressed, the phenomenological theme investigated in the preceding chapters is: "being in the real, objective world pertaining to my mental living as transcendental mental living in the natural attitude."¹ More narrowly expressed, this theme was developed with respect to the "genesis" of the ideas of time and space as products of subscientific-philosophic thinking and experiencing that take for granted the positing of the naturalness belonging to the natural attitude²—a development that consciously set aside the "naturalistic conception" of the ideas of time and space with respect to their specifying assumptions exercised in modern philosophy and science.³ In particular there were two central specifying assumptions singled out for attention and on which the epistemic and ontic claims of modern scientific and philosophic thinking and experiencing rest (section 38ff.). The first is the idea that geometry and kinematics define space, and if space defines reality it would seem to follow that geometry and kinematics define reality.⁴