The concept of using human interactions as dynamic boundaries in the perception of space is highly innovative and creative. The incorporation of playfulness to explore this notion adds a unique dimension to the installation. The analogue experiences of rocking and mist effectively represent the impact of human actions on space.

The design considers spatial interaction and user experience by incorporating a rocking platform and mist nozzles. These elements engage participants in a physical and sensory manner, allowing them to experience the impact of their presence on the space. The emphasis on playfulness enhances the user experience, encouraging a more immersive exploration of the concept.

The choice of Place de la Paix in downtown Montreal as the location for the installation seems suitable for fostering public engagement. The use of scaffolding and plywood, along with a non-slip rubber finish, indicates a consideration for materials that can be easily dismounted and leave the area unharmed. However, the extent of integration with the immediate surroundings could be further explored to ensure a seamless blend with the urban environment.

The design aligns exceptionally well with the theme of Beyond the Boundaries by exploring the dynamic and often intangible factors that shape our perception of space. The choice of human beings as boundaries and the incorporation of analog experiences effectively convey the theme's essence. The rocking platform and mist nozzles successfully translate the conceptual ideas into tangible interactions.

Overall, Being(s) Boundaries demonstrates a strong and thought-provoking design that excels in conceptual alignment with the theme and innovative exploration of human interactions in spatial perception. The integration with surroundings could be further refined, but the overall execution is commendable.