It can be. Whether it is is up to you. We are in the unique situation of being in a dreaming state but also being fully lucid, and a fully lucid person often believes the dream sphere will work like the waking world because they lack the suspension of disbelief a dreaming state otherwise provides.

[Ford you are literally in the middle of a fight this is probably not the time oh my god]

If I drop you and you just decide not to sink, what laws of physics are going to stop you?

[He's gonna demonstrate this by fully just letting Shu go

sink or swim baby boy]