What does the term "borrowed ladder" refer to in GATTACA?

The term "borrowed ladder" in GATTACA refers to the concept of individuals from lower genetic classes relying on the genetic traits of those from higher classes as a means to elevate their status or quality of life. In the context of the film, the genetic hierarchy is significant, where individuals with 'designer' genes are favored over those considered 'natural.'

This reliance on the genetic advantages of others symbolizes how those deemed second-class are often forced to navigate a society that prioritizes genetic perfection. The term encapsulates the struggle of characters who feel they must "borrow" the perceived superiority of others to achieve their goals and rise above societal limitations. This theme directly addresses the implications of genetic discrimination and the ethical concerns surrounding the value placed on genetic identity versus individual capabilities and aspirations.

The other options do not capture this nuanced social commentary. While identity theft can be a practical strategy in the film, it does not encompass the deeper implications of social reliance on genetics that the term "borrowed ladder" conveys. Similarly, inherited wealth and illegal cloning, although relevant in certain contexts within the narrative, do not align with the specific connotations of social mobility and genetic class dependence implied by "borrowed ladder."