Hello If we have this 4D strucuture (being time one of the dimensions) is it right to think that, similarly to the fact the matter ocuppies a portion of three spatial dimensions, it also has a length in time? If this question makes any sense, would be possible to know how much time we occupy? It would be just a fraction of second, is it more? I mean, the fact we are moving in time torwards what we call the future, doesn't mean that we can't occupy a finite portion of the time dimension at any given "instant". Another thing I was never able to understand: If matter is able to bend space-time around itself, does it mean that not only space is bent, but also time, right? The time would bent over the space, and as we move in time we also move in space towards the object that causes time to bent. In this case, the same way earth's gravity acts all around it (in space) , it alsos acts in time? Does the earth from this exact instant in time generate a gravitational field that can be felt back in time, or even in the future? Could we measure it? Does the gravitational field we experience now is the result from the sum of gravity generated by many earths on different time instants? Forgive me if it is all BS, but those are honest questions from a non physicist.