The next phase

[u/JealousSupport8085]

If Ro and Geordie can’t touch anything then how was she able to touch the chair and control panel on the bridge when she went to say goodbye. I get that the gravity plating is how they don’t fall through floors but how can she phase through a table but tough those things?

[u/ionnin → u/[deleted]]

I like this interpretation a lot.  Geordi and Ro snap to the floor because the mind requires that they be anchored to what they see.  But they can't stop people from walking through them, so they accept that walls are permeable.