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
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.
I don’t know about you, OP, but I can move on 3 axes.
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.