That's PILED in your RAM; lots of unused RAM is what makes your "Computer" communicate at the "Speed" your Internet service is rated. With malware, spyware, OPEN Programs (multiple Web Pages) your connection sends at the Service speed; at your Computer just 'so much' has room to operate, your CPU decides priority of what you are running. Fewer open pages mean more speed, clearing History and Cache 'erases' files so more RAM is open BUT clearing History doesn't always affect malware/spyware and evt vwr keeps holding more files.
I use CCleaner. It's a free download and there is an optional 'more features' subscription. When I run it (every 4 or 5 days) it 'empties' more than 50 megabytes of RAM and things RUN FASTER.
ASK some friends what they use and take your pick.
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.