...I am suspicious of the author's relocation from California to Staten Island, which suggests that she has manufactured a career via some calculated recycling of a generous dollop of 60s ennui and positioned it for East Coast elitists (who will publish virtually anything that gives California a cultural beatdown). The valedictory quote near the novel's end that is supposed to skewer the Golden State (see near the end of the article...otherwise why post a link, eh?) really seems applicable to much of America at this point, and suggests that what follows the "bleeding edge" (remember we suggested a Pynchon connection vis-a-vis Ms. Kleeman...) of neo-noir pouty angst is a resigned acceptance of blankness.
We should also note that Pynchon mined a 60s version of this territory (CRYING OF LOT 49) in about 150 pages, or about 40% of the page count of SOMETHING NEW UNDER THE SUN. "Brevity, my sweet!"
https://www.vulture.com/article/something-new-under-the-sun-alexandra-kleeman-review.html