"Cool idea! Piezoelectric flooring has a lot of potential — turning footsteps into usable energy is a great way to add sustainability in busy places. Would be nice to see numbers: how efficient, how much power it can realistically generate, and cost…"

"Great idea!Love the focus on helping birds during summer with a sustainable rooftop water system. It’s creative and eco-friendly. Would be even stronger with more details on how much water it can collect, how to keep it clean, and how easy it is to…"