First, the movie made me think about the purpose of life. Generally, people all enjoy a comfortable and easy life, but why would these people choose to go to space or live in an ice land? These places are definitely not suitable for humans to live. The bottom line is that they need the capability to survive in these places. But even with the full capacity, it is still quite harsh to survive there that Ryan hated space at a certain point.
Second, we ought to be thankful for what we have. Comparing to the astronauts and other hardworking people living under harsh conditions and trying to improve the quality of safety of human living, we are blessed that we are not experiencing all these very tough situations. When I saw Ryan finally reached the bank, I felt such a relief. After going through this, many things in our daily life are just trivial and not worth worrying about.
Third, what would people do if someday the satellites are malfunctioning. Even now, look at how people are dependent on technology. If the satellites were gone, human society would become a total mess. Technology brings tremendous advantages and benefits to people, but at the same time, it brings many challenges, distractions, and problems. There are many human factors issues involved in the movie: attention, memory, swimming skills, learning and training, simulation, automation, information processing, interface display, user experiences, etc. Humans have gone through a long way, but there are still a lot of issues to be explored and resolved.
Finally, I gave five star rating for this movie. It is absolutely mind-blowing, and it is very close to reality. I could not imagine anyone could film the out space story in such a vivid way. Now I see. The movie is inspiring, thought-provoking, stunning, and reveals an important real world problem.