Lots of people put their couches etc straight against a wall pointing to the opposite wall where their tv and credenza is rested against.
But when one looks at published interior design or people's pinterest dream boards you'll see floating couches, arrangements around the center of a space, etc.
Though I'm sure that pedestrian layout is partly a cost thing if you have very limited space. Or hell even a bunch of cheap furniture doesn't even have backs or it looks like cheap particle board only crap.
That New Yorker cartoon saying something about you have to be really rich to afford this much nothingness.
The acoustics only have the slightest weirdness, there's a spot in the 3rd floor Master Bedroom where I can talk to someone in a specific spot in the 2nd floor kitchen (on the other side of the dome) as though I were standing next to them, but otherwise my dome is good at keeping noises isolated.
Polystyrene sticks to everything, by the way. https://i.postimg.cc/sgb5n2bf/20200114-134910.jpg
A few years ago, the neighbor kid from where my parents live made a hole in a wall of his room leading to outside.
Any section cut through a dome will be a half circle, so you're still going to be wasting a lot of material when you cut that wall. And at 6' high, it's going to encroach significantly on the floor space of the dome.
> The void behind can be used for storage just like with second story kneewalls.
This would require access from the (approximate) middle of the knee wall, reducing the usefulness of said kneewall. And leaving a storage space on either side of this access shaped roughly like half a wedge of apple (though a bit larger).
It's either that or the knee wall itself would have to curve to stay a consistent distance from the bottom edge of the dome, which would be a whole different nightmare to build.
Unless you get a lot of custom pieces, you can lose a lot of space or end up with awkward and ugly situations, so it really only works for people who have the time and resources to spend on custom interior design.
Because of all this, resale of the home can be difficult, because your market is limited to the small community of people
Perhaps as 3d and custom manufacturing becomes more commonplace and price competitive with assembly line products, there will be more of an appetite for the amount of customization that these kinds of homes require.