I know little about Physics, these are some chaotic ideas:
What is the center of Universe:
Several hundreds of years ago, Copernican heliocentrism replace the geocentric model as the main theory which makes sun as the center of the universe, nowadays, as the development of astronomy, we still don’t sure whether the universe has a center or not
Hundred years ago, Einstein’s relativity put the speed of light as the center of his physical theory, replace the observer(human most of the time), nowadays, the speed of light is astonished stable which makes it the center of physics
Why the speed of light is that number, can’t be great or less?
People feel speed by eyes, and this feeling is limited by the chemical reaction and electrical conduction in your human body, so you only can feel the speed in your way, so the speed of light make you feel like that number
The speed of light nearly 300000 km/s, this is a basic definition of physics, if we defined the speed of light to 200000 km/s, there won’t be any change to our life or physical researches
What is before time?
The universe starts at a specific time as the big bang theory, then what the universe looks like before that time?
This question is similar to the question of what is the temperature lower than absolute zero? the answer is if we find a temperature lower then absolute zero, we define a new zero, then still nothing can be lower then zero, time is a similar thing, if we find something before the big bang, we just define a new start of time.
