Placemaking transforms physical spaces into socially meaningful places, with long-term impacts depending on how future communities inhabit and interact with them. Speculative design helps envision such futures, yet existing approaches often produce static representations that emphasize spatial form over evolving activity. We present ParaScape, a design support system that facilitates speculative design for placemaking by generating dynamic speculative objects through an underlying LLM-based multi-agent social simulation framework. The framework models heterogeneous agents with group-specific preferences and sensitivities, simulating context-sensitive behaviors and interactions that produce evolving scenarios. These scenarios are visualized as image sequences, where each scenario depicts multiple activities unfolding within a place at a given moment. ParaScape builds on this framework to allow designers to explore scenarios, analyze activity diversity and evolvability, and reflect on trade-offs among stakeholder needs. Evaluations through two experiments, a user study, and two case studies show that ParaScape supports critical reasoning and inclusive placemaking.

Brace has been commonly customized for patients with adolescent idiopathic scoliosis (AIS). The corrective force generated by the brace is often considered to be applied statically at the fixed torso location defined by the orthotist when the patient is standing upright. However, despite being stabilized by the brace, daily spine movements still occur, and the changes in the magnitude and distribution of corrective forces across different spine postures remain implicit. This study proposes a method to measure pressure distributions under a thoracolumbosacral orthosis (TLSO) worn by an AIS patient using a self-developed pressure monitoring system. A total of 100 sensors were placed all over the interior surface of the brace. Contact pressures were measured in ten static spine postures and during walking and jogging. The results showed that the magnitude and distribution of corrective forces varied across different postures and movements, with the location of the maximum corrective force shifting from the intended torso location, potentially decreasing the effectiveness of the brace. The findings provide valuable insights for orthotists to assess brace effectiveness through quantifying changes in corrective forces.