Elsewhere in the comments, it is noted Apple's own estimates are identical despite allegedly 2x better hardware. Aside, 2 hours is very low even for 2010. Ther

Elsewhere in the comments, it is noted Apple's own estimates are identical despite allegedly 2x better hardware. Aside, 2 hours is very low even for 2010. There's a strongly usability advantage for going to 16. But going from 16 to 128 won't add as much. The natural course of things is to converge on a decent enough number and 'spend' the rest on more complex software, a lighter laptop etc.