Proof of what?
One is left wondering what it is Mr. Steadman is attempting to offer proof of.
If its the mythical "Planet X," then we've only proof of what an idiot he is.
Fact is, it is entirely likely that there are reasonably large undiscovered planetary/asteroidal bodies out beyond the farthest reachest of the known solar system. Could any of these be Sitchen's mythical "Planet X" on its way towards earth to create havoc and destruction? No.
Such ideas are incredibly silly...the sign of an ignorant and gullible human being, Sam.