6. How does the image of "echo chambers" in paragraph 10 contribute to Sunstein's thesis?

In an echo chamber, people only hear echoes of their own voices or opinions. If people only select news that echoes their own views, they choose to exist in virtual echoes chambers. By hearing only, one’s own views echoed back in the form of “news,” one’s view are never informed or revised by opposing ideas or viewpoints.

the servant does not kill the child oedipus as he was ordered to do because "he pitied the child" based on the oedipus rex story. the servant was ordered to kill the child because of the prophecy that predicted king laius' death. the king already had attempted to hurt oedipus by piercing oedipus's ankle. however, the servant did not finish the job and he rather saved the baby oedipus.

explanation: