This dude is wrong time after time, but it scarcely matters to his followers.
That is truly the sad part. In any other profession: engineering, medicine, etc. a track record like that will get you tossed out of your field and maybe even land you in jail. But when it comes to religion, they get a free pass.
Apparently, the current lack of spectacular comets means that these liars have to latch onto other ordinary, and totally predictable phenomenon in order to predict gloom and doom.
Wasn't this stuff covered adequately in episode 3 or 4 of 'Cosmos'. Sheesh.
Yet they still try to find nonsense in perfectly logical phenomenon. Look at astrology. There are still idiots who believe that nonsense despite the fact that we have fully understood the constellations and star movements for a few centuries now!