system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: People say that Apollo 11 could have been done with a normal calculator, so why is space flight nowadays still so hard?
gpt
All the math your computer does to run Call of Duty could be solved with an Abacus and a lot of patience. There were professional mathematicians titled Calculators who did loads of math on pencil and paper to figure out flight trajectories and stuff that today we have complex programs that can do it in real time.


Fun fact, many early maneuvers in space were eyeballed by the astronauts because they didn't have time to do the math.


Getting into space may take less time to do mathwise, but rockets are still engineering marvels and take a load of work to make and maintain.