[Yollopoliuhqui]

Not a single poster took this seriously as a grave threat to life on this planet. Who did your lobotomy?

[Lurkina.n.Learnin]

So what would a serious person do about it?

[txhurl]

You could read Lucifer's Hammer for a depiction of how the planet would likely react to an NEO object actually striking, and how the surviving populace would react.

Then develop a plan in the back of your mind in the event an NEO likely strike.