The man whose biblical doomsday claim has some nervously eyeing Sept. 23

Why do people take crackpots like this seriously when Jesus himself has informed us that no one knows nor can know the time of the end except God .  How a non existent heavenly body is going to strike earth on Sept 23, 2017 (that's Saturday folks) and bring in the tribulation period is beyond reason.  The event that begins the tribulation period is the rapture of the church so if you are a Christian you have no reason to fear.  If you are not a Christian then you do have reason to fear but not because this fool says so but because God says so.