Both - The Big Bang Theory is comprised of the a physical model for the evolutionary expansion of our universe within a traditional fourth dimensional frame of reference for our SpaceTime continuum, and then a more conceptual model involving the evolutionary expansion of the universe from its inception as a singularity to our reality for existence in a traditional fourth dimensional SpaceTime continuum.

All Apple MacBooks Pros are 3D objects which also exist within a 4D spacetime continuum. No MacBook Pros have a 3D screen.

Spacetime Studios was created in 2005.

Gravity is a force, not a bend in spacetime.

Look at this websitewww.spacetimemodel.com It says that mass is really just a 4d volume of spacetime displacing and therefore warping the spacetime around it and so the answer is all mass displaces and so warps spacetime.