[Knowing Art's past (or, well, parts of it, at least), knowing his determination and guessing at the inevitable insecurity and inadequacy that not having a Minimum, not being able to manifest an ability, would bring... that is ultimately what made him treat this with the seriousness it deserves, a tangible revelation for Art about this whole thing.]
[For once, Birthday simply stands there and watches, too, not making any attempt to move or say anything. If Art regains his Minimum, well, that doesn't mean it's triggered... and triggering it is something that has to be avoided, at all costs. He doesn't know what caused the change, doesn't know what made Art like he is, back home... but he can make the connection. Before Minimum, after Minimum. It's simple.]
[And so, he makes a decision: getting it back is something Art can do. But if it ever seems like he's in danger of triggering it, if there's ever a situation like the one that Freemum bastard recorded... well, he'll just have to make sure it won't have a chance of happening. No matter what.]