[ There is an unspoken reply to Hythlodaeus's question, too. Indeed, the floor is very flat and quite motionless. But what comes next gives Yesod pause for another reason — enjoying the party is somewhat complicated.

He has achieved a few of the goals he'd set himself, which could suffice as the simplest answer. ]

This party is an opportunity to meet people brought here from various worlds. Speaking with them has been interesting.