Why did the aliens make some people obsessively scribble the numbers? It served no purpose. Things like that are meant to be a warning, to try and prevent a future catastrophe. There was no stopping the sun freaking out and burning the planet. And it didn't help any of the other survivors either, because the aliens only took the ones they could speak to. And they were taken anyway from wherever they were. The kids didn't need the parents to drive them to the ship, the kids were fine wherever they were, the aliens would've picked them up and taken them. So again, there was no point for the scribbling. It was completely pointless. It served only to drive one woman insane, ruin her daughter emotionally, and send a doomed man into a frantic state of paranoia in the last days of his life. Yeah, really good work there aliens, thanks for that help there. *rolls eyes*