Right now the first key to assessing the plausibility of this discovery is: what would float and what would not?
None of this is even remotely credible; the election was stolen without even a pretense of plausibility.
What I question is the plausibility of the politically-aloof theology they propose in its place.
1540s, "acceptable, agreeable," from Latin plausibilis "deserving applause, acceptable," from plaus-, past participle stem of plaudere "to applaud" (see plaudit). Meaning "having the appearance of truth" is recorded from 1560s. Related: Plausibly.