Adult Swim has a history of burying links in Rick and Morty episodes. For example:
Rick's character serves as a vessel for the show's exploration of existential themes. A nihilistic worldview informs much of his decision-making, as he careens from one catastrophic event to the next with a detached air of inevitability. This perspective is both a source of comedy and a commentary on the futility of seeking meaning in an indifferent universe. Rick And Morty --39-LINK--39-