Im not to sure what your question is asking, but yes if you can upgrade to 4gb I would do it. My mac has 2 gigs and I get the rainbow circly thingy all the time. I don't know if my macs getting old/slow or if I need new ram, but either way I won't upgrade cause im poor.
Yes it is good for you. If you want to update you RAM with new 2GB then check the clock speed of both RAM, will be same. Or if you want to buy new 4GB ram that will OK.
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.