As Designboom explains, the exterior mimics "nervous tissue" in the way that the blobs expand and stretch as the building curves—something the blog also refers to as an "organic envelope."
The blog contrasted earlier renderings of the hotel with shots taken during construction. In these, you can witness the curves of the core structure, the "curtain wall windows" wrapping around the entire building, and the installation of the white facade.
One very cool part is the "elevation diagram" of the facade, which shows the structure of the facade on a 2-D, flattened surface. Here, you can see how the "warped" shapes almost seem to emanate from the hotel's entrance, like ripples on a pond. The entrance then becomes the epicenter, toward which the rest of the building leans. Very cool, Conrad! MAD Architects worked on the design.