system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can't we "rewind" the satellite images and track the Malaysian airplane from its takeoff to see where it went?
gpt
We don't have live satellite imagery of the entire world.  There are definitely several government "spy satellites", but they were almost certainly not being wasted to track what, at the time, appeared to be one of hundreds of thousands of normal daily flights.