Hey, some of us suffer from RAS Syndrome, you insensitive clod!

Yah, MacBook Air RAM has integrated onto the logic board and cannot be removed or upgraded. Makes sense that a tablet would be similar. Cheers, Joseph.

I can't strongly enough recommend the book Pale Blue Dot also. Specifically the Audio Book with Sagan himself narrating. Listening to him describe what is clearly his passion and lifes' work is fascinating and very informative. I re-listen to it at least once a year. A+++ Will listen again!

Yep, I've cleaned my MacBook LCD weekly for a year with IPA, it works great, and has had no detrimental effects at all. I clean the whole machine with IPA, great for getting fingerprints off black MacBook plastics.