Hi, I just downloaded the iStats menu app in order to check some values for my macbook. 1) I noticed that the CPU temp is between 70˚C and 90˚C without doing anything "serious" task. Just browsing the internet and office work. Is this a normal temperature? 2) Furthermore, I noticed that the temp was changing rapidly. For example from 90˚C in two or three seconds dropped to 70˚C and then after another two seconds went back to 90˚C. Is this something that happens? Thank you in advance!