Usually with the older systems it's due to dust buildup because almost no one ever cleans out their systems and old, bad thermal paste that needs replaced because almost no one ever replaces the thermal paste. So open it up, clean it out and replace the thermal paste and that should help. Lack of SPACE...NOT memory...(nor even lack of memory at that)...never causes overheating.
If that were the case, then almost every single system would burn up.
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.