[youtalkfunny]

If Johnson finishes 18th or better, he clinches the title.

He has finished 18th or better in 14 of his last 15 races.

Also, this time out, the other drivers know what is going on, and none of them wants to be the dumbass who wrecks the guy and costs him the title. Nobody will be racing Johnson "hard". The entire field will be treating him with kid gloves, and giving him a wide berth at every opportunity.

Oh yeah, and he's finished top THREE in ten of his last twelve starts. He's pretty good.

EDIT: One last thing. No driver has ever blown an 86-point lead on the last race of the season.