going to do now which is Bayes filters so often the world is dynamic because robot does things other agents do things time is passing by the world changes in various ways as a consequence so how to incorporate actions into what we're doing as well as our sensor readings so typical actions robot turns its wheels to move robot uses manipulator to grasp an object a plant grows over time and takes up more space actions are never carried out with absolute certainty so in contrast to measurements actually actions generally increase the