Basically how you visually describe something in a story
Answer:
Authors revise their work because they need to review a text/writing for spelling, grammar and punctuation errors so they dont confuse the reader.
The technological advances addressed in the novel, "1984," that present ethical implications today is the propaganda being emitted from the radios in the streets which can be the same to media outlets in the Western World today that seems to be one-sided on certain arguments. A lot of people’s opinions are based on what is presented on television media, therefore their opinions become one-sided.