Despite his nonchalant demeanor, Dirk is in fact listening to every word he says. It would be stupid not to, considering Eridan obviously knows what he's talking about, even if it's all really stupid to Dirk. When Eridan is finished and he's posed that question, Dirk is quiet for a long moment. Does he want to give Eridan the satisfaction of knowing he's convinced him?

Eh.

"It gives me shit to think about at the very least." He's a stubborn buttface, so of course that's all he's going to say on the matter.