A mixed reality system, comprising: a data acquisition device configured to acquire real-world data; an output device for providing the real-world data to a user; and a processing circuitry configured to: obtain (a) data acquired by the data acquisition device, and (b) information of one or more virtual entities having properties enabling determination of simulated effects of the virtual entities on the data; determine the simulated effects of the virtual entities on the data utilizing the properties; and provide the user with output on the output device being a manipulation of the data reflecting the simulated effects.