What do you mean, it's not important?

[The question is immediate, edged with incredulity. Sam stops herself short before saying else, realizing that something's shifting---or shifted---in this conversation. She takes a moment to tamp down her disbelief, to try for a feel as to where this is going to go..]

It's past, and they're not here, but there is an off chance... And even if nothing ever comes of the off chance, it's important.