What does the filter on the subway mean?

The filter on the subway means that people observe and feel the world around them through their own filtering and selection when they take the subway. Different people have different views and moods, and the scenes they see are subjective and biased. The filter on the subway also reflects people's different attitudes towards city life, which is a reflection of lifestyle.

Filters refer to people filtering and processing the real world, thus forming different feelings and opinions. The filters on the subway are somewhat similar to those in photography, both of which are designed to let people see the world that is more suitable for them. The difference is that the filter on the subway is the product of people's own mentality and thoughts, while the filter in photography achieves different effects through post-production.

The filter on the subway can also be understood as the contrast and creation of the city image by society. Taking the subway symbolizes a special experience of modern city life. The subway system with reasonable design and perfect service can enhance the image and value of the city. On the subway, people's behavior and speech are also part of the city image. Filters on the subway need people to be more self-disciplined and civilized to make the city image better.