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Wednesday, 7 January 2009

Keynote, you hold the key to my Ire

I watched the Macworld Keynote presentation. I did not enjoy it.

No Steve Jobs this year. But the people there could well have been channelling him, Keynote Bingo is still applicable.

Now. The presentation... [shudders]... had: poor use of repetition, Halting speech, Cringing drawn-out statments- "... I don't know about you, but when I look at this photo and I look at this big gorgeous glowing Apple up in front of it and I think 'what other company's logo could be there' - could you ever imagine. And I can't. I can't think of one company in the world that could have a store that beautiful. Such incredible customers bringing all their energy and love to-to visit with our stores and talk with the sales consultants, get help with the genius..."

Mr Shiller is senior vice president of Worldwide Product Marketing, is it unrealistic of me to expect good presentation practice from him? [I do feel like I am kicking a puppy saying this, since they guy is so earnest about all things apple]

They said they had 37.7% growth in 2008, whereas PC only grew 15.2%. Mac hold 5-10% of the US PC market. Using raw-ish numbers PC growth cited above is 4 times greater than this. Data normalising is sneaky. >:( [wags finger] It is easier for a small things to double-up, or some fraction thereof, than for large things to do so.

[Warning tenuous sequitur beyond this point!]
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In a way, market size and relative growth are an example of the square-cube law. Thinking of this reminded me of other examples.

An ant and man fall from 100 times their respective heights. The ant can scuttle away with ease. Our hitherto screaming man ["Aaaaaaaaaaaaarrrrrrrrg-"] can't. The larger the relative area the impact is spread over the less damage it does. The small ant had a surface to volume ratio of x. The man, being ["ummmmm"] 200 times larger had a surface to volume ratio of 0.015x [assuming they are both spheres, Mairtin scrunches face trying to voice justification for this].

Another example of the phenomenon is the elephant and the stilettoed woman: Using P=m*g/a, where P is pressure exerted on an area and g is gravity [9.8 m/s2]...
  • me, Male African elephant mass supported on one foot, 1750 kg [~quarter of his mass]
  • ae, Size of an elephant foot 410 cm2 [0.0410 m2]*
  • Pe=1750*9.8/0.0410~420,000 Pascals
  • mw, Little Woman mass supported on one foot, 28 kg [half of an arbitrary and hopefully uninsulting weight]
  • aw, Area of a stilleto heel 1 cm2 [0.0001 m2]
  • Pw~2,740,000 Pascals
  • More than six elephants would have to be stacked to exert a similar as the "Little Woman" in question
The significance of the result is that it is more appealing to be throd on by an elephant than a woman. However, on balance I would sooner be gored by a woman.
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I feel so much better after doing some calculations** that I don't feel like giving-out*** about the irritatingly presented Apple's Keynote anymore :)

*The total "slipper area" is 1640 cm2- Biology, Medicine, and Surgery of Elephants, Murray E. Fowler, Susan K. Mikota

**Assumptions in my calculations make the result less than rigourous
  1. Assumed weight of the elephant is evenly distributed between its feet
  2. The half of the woman's weight went into the heel only and ignored the ball of the foot
  3. Pressure was calculated long after stamp: weight only, no muscle assistance
*** Giving-out an patently Irish thing to say. It is a direction translation of the Irish for chastising, "ag tabhairt amach"

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