Answer:
That the people he is addressing have researched philosophy
Step-by-step explanation:
Infinite Jest is a novel written by American writer David Foster Wallace in 1996. It has been categorized as an encyclopedic novel.
In the given excerpt, the narrator mentions the names of many important philosophers: D anish philosopher Søren Kierkegaard (the first existentialist philosopher), French-Algerian philosopher Albert Camus (widely known by his book The Myth of Sisyphus), English philosopher Thomas Hobbes (considered to be one of the founders of modern political philosophy), Genevan philosopher Jean-Jacques Rousseau (known for his contributions during the period of Enlightenment), German philosopher Georg Wilhelm Friedrich Hegel (one of the fundamental figures of modern Western philosophy). The only name that sticks out is the name of Dennis Gabor, who was an electrical engineer and physicist, most notable for inventing holography.
Based on all of this, we can conclude that the narrator assumes that the people he is addressing have researched philosophy.