Natural forces have provided the reality of what happens here on Earth under the stimulus of energy from the Sun. These self-organzing and sef-regulating forces have created over eons the bio sphere and geo sphere, with a few ups and downs, that we have inherited. Humans have invented technology that uses some of these natural forces to irreversibly use up limited natural resources to produce our needs and wants. This is an unsustainable process. So our materialistic civilization is a spurious, temporary reality that coming generations will have to do without.