All these points are strong and their theory is certainly plausible, but if we take a look at the subject from a different perspective, things may not be so clear anymore.

plausible 来自拉丁语 plausibilis（值得鼓掌的），由词根 plaudere（鼓掌）和后缀 -ible（可...的）构成。原指"值得赞许的"，后引申为"看似合理的、可信的"。这个词强调表面上的合理性，常暗含"虽然看起来可信但未必真实"的意味。