[hopespringseternal]

And because you can find specific cases of erosion, you think that explains the lack of erosion and seismic activity over large areas of the rest of the globe for hundreds of millions of years?

[dirtboy]

I can find instances of unconformities all over the globe. Lack of seismic activity happens in the center of cratons, but is widespread elsewhere.

Learn some geology more than gazing at a few photos of canyons, which are very limited in their spread - areas of ample rain have the visible geology covered by vegetation.