When you were talking about the different quantities we have access to, I tried to predict the third one, and said “time.” You said speed, which actually does make sense, given that time is a component of speed, then that you related these different values to the extremes which has led us to the various theories. I never looked at Special Relativity as an extreme of speed. I have to admit that my studies did not extend much in to Special Relativity. Nice to get the opportunity to look at it more closely. Thank you!