They are both correct, but Greta was alluding to something more specific than "laws of physics" in general.
Someone like her, who very openly and wholeheartedly cares about scientific research and the advancement of mankind, would be very specifically fixated on the potential of the hotel to break the laws of thermodynamics. I don't want to spell everything out but the use of "thermodynamics" was very purposeful at that point. Think like an engineer and ask yourself what you'd do if you had access to this space where you can break the laws of thermodynamics, and you just established that both matter and information can be sent to and from it.