I have a friend who is convinced that 256MBs is more than enough for Mac OS X (he also claims that he runs WinXP only using only 20MBs of RAM ). The sad thing is I would consider him an advanced user of any Mac OSes, which hits me strange that he would say such. We all know that 256 MBs isn't enough, but I couldn't think of a good explanation to say to him to prove the obvious. What could I say to him to prove he's wrong? (I think I worded that the right way) Also, how much RAM on average does Panther take up? Thanks.