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05/08/2008
How PowerPoint downed the Space Shuttle
Columbia, orbited the earth for 2 weeks with an unknown hole in the wing due
to a foam strike (the latter which NASA did know about). The craft burned up
on re-entry, killing the entire crew. It also killed PowerPoint at NASA. These
are the six cognitive traps that PowerPoint is so good at – and all six
appear in a key slide that was used in a presentation by Boeing while Columbia
was damaged but still flying.
This is the slide

These are the cognitive traps:
1. Festival of Bureaucracy
There are 5 different levels to this slide (counting the headline). The first
three sentences are all in big print and tell you not to worry. Read further
down, and you should worry – big time. By the way, SOFI means foam
(or for the tech-heads: Spray On Foam Insulation). The word ‘Crater’ refers
to the model they were using to evaluate how bad the foam strike was.
2. Conclusion as headline
We often want to get to the bottom line. PowerPoint is the opposite – it
allows us to present a conclusion as a headline, reducing the motivation to
follow the details of the story. The headline says everything is OK. The content
says otherwise.
3. Choice of Words
The word ‘significant/ly appears 5 times. But read down the slide, and ‘significant’ changes
from describing a conservative outcome to a disastrous one. But the one that
comes first sets the tone in this busy world of ours.
4. Relevance
If you read the last line, it tells you that all the data presented is irrelevant – it
falls outside the scope of the Crater model.
5. Inconsistency
The same unit for volume (cubic inches) is shown in a slightly different way
each time. Things can get out of hand in aerospace engineering when things
are inconsistent – such as crashing a $250 million spacecraft into
Mars because of a mix-up between metric and the old pounds-and-ounces system.
Oops.
6. Shrinking away
We tend to shorten sentences into ‘bullet points’ for PowerPoint.
Sometimes this results in a sentence only its mother could love. What the heck
does “Initial penetration to described by normal velocity” mean?
Why is it there?
When you get whacked on the side of the head, it’s the fact that kinetic
energy is velocity squared that hurts so much. In the same way, we
can increase the energy of what we want to convey by using cognitive traps
in presentations. However, lies are like shipping and handling costs – it
will get you every time.
Reference: Edward Tufte. PowerPoint Does Rocket Science: Assessing the Quality
and Credibility of Technical Reports. http://www.edwardtufte.com
About the author
Sid Peimer lives on another planet. We’re not quite sure where, but you
can find him at www.stratplanning.com where
there’s lots of free resources on new business pitching.
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