Sorry, I think I might be misunderstanding you. By "We live in the base reality", do you mean "Even if we live in a simulation, the simulation itself is hosted

Sorry, I think I might be misunderstanding you. By "We live in the base reality", do you mean "Even if we live in a simulation, the simulation itself is hosted somewhere; following back the chain, eventually you reach the base reality. Therefore in the same sense as one should say that Microsoft Word runs/exists in our real world, one should say that (even if we're simulated) we exist in the base reality"?