Although c is now the universal symbol for the speed of light, the most common symbol in the nineteenth century was an upper-case V which Maxwell had started using in 1865. … physicists such as Lorentz and Einstein were accustomed to a common convention that c could be used as a variable for velocity. This usage can be traced back to the classic Latin texts in which c stood for “celeritas” meaning “speed”. The uncommon English word “celerity” is still used when referring to the speed of wave propagation in fluids. – UCR
Now you know why we use “c” for the speed of light… but why is c that speed?
Contemporary physics states that no object should be able to travel faster than the speed of light. … The question whether the speed of light is a true physical limit has no definite answer yet. It depends on the real structure of the space-time continuum, which is presently unknown. – lbl.gov
Sure, its a fundamental constant, but why is the speed of light what it is? When you don’t get an answer to your question, try again and again. Wikipedia says:
According to special relativity, c is the upper limit for the speed at which conventional matter and information can travel. Though this speed is most commonly associated with light, it is also the speed at which all massless particles and field perturbations travel in vacuum, including electromagnetic radiation and gravitational waves.
Okay, but that still doesn’t answer the question. The best answer, the most true that I could find, seems to be this:
Why is it this speed and no other we just don’t know. – PhysicsForum
Enjoy the journey and keep wondering and exploring. There are still great mysteries to be solved.
My answer: Our universe simulation is built of u-bits and each can perform a maximum operations per second. The speed of light (gravity, electrons, neutrinos, and all causality) is fixed due to the “clock speed” per quanta of the computer simulating our particular universe. Send my Nobel prize to Xeno@xenomail.us. Thanks.
Nevertheless, please keep looking for a better answer. Please leave a comment or email me if you think you know why light speed is the speed it is.