I live in reality. It's possible that you have a purple elephant sitting on your head right not but it is implausible. I allowed it because I know how far into implausibility you have to venture in order to come up with a possibility, and they will all make you look stupid. Go ahead, one possibility. Stop stalling with this irrelevant distraction of plausibility vs. possibility.
Missed this one. Alright, give me one possible alternative to me having an elephant on my head. Or can't you? Difficult to force yourself to answer such a stupid request, isn't it? That's exactly what you're doing by claiming, without any support at all, that waggy must believe something by virtue of him having typed something which could merely lead to that conclusion, and then asking for alternatives after having already dismissed the obvious alternative out of hand: it was an improperly induced hypothetical premise, improperly thought to be analogous.
Possible v plausible is integral, not a distraction, when you're talking about what must be the case. Recall the classic example of waking up to find everything wet outside. Do you think it must have rained or that it's just the most likely explanation for the wetness? It's not plausible that a group of water enthusiasts hosed the city down overnight, but it's possible.