system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 - How can it be, that we went from Roman times up until the late 1800's with the horse and chariot/carriage. And then in less that 100 years managed to reach the moon.
gpt
Technology scales exponentially. Better technology begets better technology and has forever in all fields.

We spend hundreds of thousands of years as nomad hunter gathers before we invented agriculture, then really quickly we developed cities. 

Basically the better technology you have the better technology you can make, its a positive feedback loop of progress: