I know that it is madness to deny that the world which we inhabit and in which we interact is real. I’m not even sure that one can make sense — when we analyze things carefully — of a subject reflecting on reality without assuming that he himself and the world which he inhabits are real. Since their reality is what makes any reflection on those questions possible.
It is our thinking and our language that categorize the world into entities and relatively static objects. In actual reality most likely nothing is static. (No physical entity is ultimately static!)