That is correct. It was preinstalled by Apple, and RVM will not manage it. To revert to using it you can do rvm system or rvm use system and RVM will step out of the way.
You can switch back using rvm default if you defined a default, or rvm 1.9.2 or rvm 1.8.7 if you installed one of those versions using RVM.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.