4 dimensional objects?

Question

to make it clear I'm talking about a 4th spatial dimension, not time as the fourth dimension.

i was reading a book by Stephen hawking and came to a weird conclusion. if we have a cube and pass it through a 2 dimensional plane an observer in that 2 dimensional plane would just see a square. so by that logic a 4 dimensional object, lets say a hypercube, would just look like a cube to us. so could all of the objects around us just be 4 dimensional objects in our 3 dimensional universe.

wow, the first 2 people...not very smart.

Answer 1

Yes, if there were a fourth spatial dimension, the objects we see could be a three-dimensional part of four-dimensional objects.

If that were true, what would prevent us from interacting with the fourth dimension?

In string theory, there are numerous extra spatial dimensions, but they are very "small", in other words they stick out of our space only by a very tiny amount.

Answer 2

erm...every object you see is *already* a 4-dimensional object. In fact, you are also a 4-dimensional object.

Answer 3

I don't understand if time is not a forth dimension.