[viccis]

Both of those are the same. Because the same shortcoming you mentioned (how can we be certain they won't arbitrarily change on us) can be overcome by making a compelling argument for synthetic a priori knowledge. Something (imo) put to bed pretty well a few centuries ago and only revisited because of the, uh, tedious nature of analytics, whose tradition evolved out of fancylad British boys who were all empiricism pervents.