system
Given the following post, respond as if you're commenting on Reddit:
human
How can "c" be in m/s if the meter is defined by c?

How can light speed be defined by distance over time, if the units for distance are defined by the speed of light?  


I'm asking because I read that the meter is now defined as the distance light travels in some ridiculously short time.
gpt
Its not;, the speed of light has units of m/s where, currently, the second is defined by periods of radiation in a Cesium isotope and the meter is defined as " length of the path traveled by light in vacuum during a time interval of 1/299792458 of a second". So a meter is whatever distance gives the value that we define as the speed of light.