🧪 Sustainable Consumption Simulation

Sustainable consumption is rarely a simple "reusable is always better" story — it depends on how many times an item actually gets reused before the embodied footprint of making it pays for itself. This simulator grows two 3D towers of stacked blocks in real time: one tracking a disposable item's linearly climbing footprint, use by use, and one tracking a reusable item's large upfront manufacturing footprint plus a small per-use washing cost. Switch between coffee cups, water bottles, shopping bags and razors, tune how often the item gets used, how durable the reusable version is before it needs replacing, and how much its upkeep costs — then watch the breakeven use-count where the reusable tower finally overtakes the disposable one, exactly as a real life-cycle assessment would calculate it.