At least in day to day life. If we compair us to birds or fish i think theres a case to be made that were only using a 2d world.
Dude forgot about stairs
Na mate, we are 3 dimensional.
Including time we experience 4 dimensions all the time
I’m too stupid to walk backwards through the 4th one, so I guess I only experience 3.5 dimensions.
New York disagrees
Ducks. They fly. They swim. They walk.
They can go ANYWHERE
What the duck, that’s crazy
I don’t know about you, OP, but I can move on 3 axes.
Oh of course the world is flat, but those lazy mathematicians try to convince everyone otherwise because retrograde motion makes the math too hard! Boo-hoo! Get a real job math guy!
What did math ever do for us? (In Monty Python peasant voice) /s because there’s redditors around.
This is where fractal/fractional dimensions become useful. Living on the surface of the earth puts us in a dimension between 2 and 3, and varies depending on the environment you’re living in.
