Apart from the imaginings of a few people on fringe boards like GLP, there's absolutely no evidence of any physical pole shift. Ancient monuments, built over 4,000 years ago, still show the sun and moon are in the same position in the sky they always have been, and modern precision measurements also show no changes, so the earth's pjysical axis hasn't moved.

The magnetic poles move, and they always have done - we have geomagnetic evidence going back millions of years which show continual movement. Occasionally they do "flip", and likely will do in the next 10,000 years or so. However there's no evidence of any effects on life at the times they do - i.e. no mass extinctions.

"Dimensional shift" is just new-agey pseudo-religious gibberish with no supporting evidence.

All of the above is common knowledge.

So, what exactly are "TPTB" (whoever they are) hiding?