Many citizens strive to make our society better for everyone. Attempting to filter out genetic inferiorities, many believed there were positive effects to the idea of ​​eugenics. Many historical eugenicists thought that society would be better off by preventing the birth of people with these hereditary diseases. This sterilization movement was very imperfect in the early 20th century. Much of the data collected and methods used by eugenicists determined why certain individuals were malleable to a society. There were many reasons why eugenics failed then and is still flawed today. Human genetic engineering eliminates certain traits that will continue into future generations to create a perfect society. Even in a perfect society there will be people who cannot fit into that category. There are some long-term negative effects of human genetic engineering. The long-term negative effects of human genetic engineering cause consequences that widen the socioeconomic gap and limit genetic diversity. Advances in genetics and reproductive technology have opened the door to a new form of eugenics, called “human genetic engineering,” which focuses on repairing faulty genes associated with disease or other health conditions. This is done through gene therapy, which is the alteration of a genome that could occur in sperm and eggs, altering the traits a baby is born with. Human genetic engineering is the science of manipulating the genetic makeup of an individual, with the intention of altering observable traits. Genes are manipulated to improve our body in terms of IQ and muscle strength. The changes would be hereditary and passed down from generation to generation. I remember the article: “From…halfway through the document…scientists and scientists don't look at ethics, they look at competent fetuses who are capable of surviving in society. Many scientists don't think what they are doing is wrong. The accuracy of eugenicist ideas was grossly overestimated. Although based on 21st century genetics, science and technological advances, we know that some genetic mutations are associated with Down syndrome and cystic fibrosis. Human genetic engineering is simply the best way to define “modern eugenics.” Scientists have developed ways to modify genes to improve bodies. Centuries later, eugenics was disguised as science to create the perfect society that has few or no flaws. Human genetic engineering can be negative engineering, referring to the correction of genetic disorders and deficiencies by eliminating the weakest characteristics of humans to ensure they are born more efficiently.