Which concept does GATTACA challenge about modern science?

GATTACA primarily challenges the morality of manipulating human DNA by presenting a dystopian society where genetic engineering determines an individual's destiny. The film highlights the ethical implications and consequences of manipulating genetics, emphasizing issues such as discrimination based on genetic makeup, the loss of individuality, and the moral responsibilities that come with the power of altering human DNA. Through its narrative, GATTACA provokes critical discussions about the implications of such technologies on personal identity, societal values, and the definition of what it means to be human, ultimately questioning whether we should pursue genetic enhancements at all. This focus on morality encapsulates the film's central theme and serves as a cautionary tale about the potential dark side of scientific advancement.