If everyone who falls down into the hole is never heard from again, would they even be conscious of the hole? My understanding of ants is limited, but as far a

If everyone who falls down into the hole is never heard from again, would they even be conscious of the hole? My understanding of ants is limited, but as far as I know most of their communication is scent or contact-based, neither of which could provide communication past that first step. As far as they're concerned, it's effectively a black hole...