The documentary shows that many social and economic factors can cause mass migration. Inside Brazil's Most Dangerous Neighborhood (Extreme Slum), the documentary features how mass migration can be caused by poverty, lack of job opportunities, and political instability. This shows how these factors lead people to abandon their homes in search of a better quality of life, often causing overcrowded and unsafe areas. I noticed how mass migration can lead to increased crime rates. Migrants often lack the resources and support needed to find work and become integrated into their new communities. It also shows how mass migration can influence environmental degradation. Migrants often choose to live in areas with poor access to water and sanitation. The favelas often lack basic infrastructure, such as electricity and running water, and are often overcrowded and unsafe, as we saw in the video. It did amaze me though how their homes were so small and rundown. Yet they had what looked like decorations and televisions and other items that were not amenities. If this is common because the infractures are just so randown its just all that is available in this area. I also found it concerning what looked to be bullet holes in the side of the building. I hate to say this is not very uncommon in most cities now, even in the United States.