In H.G. Wells' "The Time Machine," the society of the Upper-worlders exhibits a troubling trend towards degeneration due to their excessive security and comfort. This easy living has resulted in a decline in their physical size, strength, and overall intelligence. The environment that once promoted growth and capability has instead led them to become fragile and less capable over time.

This degeneration serves as a commentary on the dangers of complacency and the potential consequences of relying too heavily on security and convenience. As the Upper-worlders languish in their sheltered existence, they lose the resilience and vitality that once defined their ancestors, illustrating the paradox that excessive protection can result in vulnerability.