system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:How do those laser distance measurers work?

I find it fascinating how a single push of a button finds a measurement with such amazing accuracy.
gpt
It measures the time it takes for the light to bounce back,  basically millionths of a second.   It then does some quick math, basically dividing the time by 2 and then multiplying that by the speed of light.