system
Given the following post, respond as if you're commenting on Reddit:
human
Are the laws of physics consistent throughout the universe?
gpt
The laws themselves are meant to hold for the entirety of our universe, otherwise they wouldn't be very good. The laws are used to predict many phenomena, such as gravitational lensing, redshift, why supermassive black holes may lie at the centre of many galaxies, the rate of expansion of the universe and the age of the universe. If these laws didn't hold, then most of the results produced in cosmology would mean very little.