Hey guys, I'm new to this forum and not very knowledgeable of what is / is not normal when it comes to memory usage in OSX Mountain Lion. For this reason, I was hoping to get an opinion from one of you who is. My rMBP is a 15.4 inch 2.6 ghz i7 with 16 gb RAM and 512 gb SSD. As you see in the image above, I don't have many programs running, and I am still using nearly 7gb of memory. I began monitoring it and realized it seemed (unusually) high when I got a "low memory" warning while running Logic Pro 9 - I maybe only had 2 or 3 other programs open at that time. I know I still have more than half of my memory left, but it just seems ridiculous that I'm using 7 gb of memory with such low activity. I know the Activity monitor gives a break down what's using what, but I don't really understand the purpose of each task, nor how much memory each task is SUPPOSE to be using. Is it possible my computer has a bug? Should I be concerned? Should I take it to the apple store and let a genius look at it? Should I reformat? Or is mountain lion just a frickin memory hog? Thank you in advance for any advice given!