Warmboard is installed about as fast as regular subfloor. The tubing should be placed in the channels as soon as the entire subfloor is nailed down. Tubing takes generally a day to put in place.
Walls can be built on top of Warmboard as soon as the tubing is down. Typically the tubing is installed the next day after subfloor installation and the framing contractors never leave the job site. More.
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.