Hi Rudy! Great to see Indonesia being represented. To develop your idea further it would help to know what kind of idea it is. Is this a process idea? Is this a disaster planning idea where an apartment building has a plan to use apartments as disaster collection points? How would that plan be created? What's the system to coordinate? What kind of supplies would people need? Getting a bit more specific will help people understand flooding in Jakarata which is different than in other places.