> ... I am starting to get the
> feeling that our expectations around the submission numbers are very
> much like the search for extraterrestrial life. We know that based on
> the size of the universe we are PROBABLY not alone...

There is an equation called "Drake equation" which aim
is to estimate the number of extraterrestrial civilizations
in our galaxy with which we might come in contact.
(http://en.wikipedia.org/wiki/Drake_equation)

It is:
N = R * fp * ne * fl * fi * fc * L

where:
N - is the number of civilizations in our galaxy with which we might
hope to be able to communicate
R - is the average rate of star formation in our galaxy
fp - is the fraction of those stars that have planets
ne - is the average number of planets that can potentially support
life per star that has planets
fl - is the fraction of the above that actually go on to develop life
at some point
fi - is the fraction of the above that actually go on to develop
intelligent life
fc - is the fraction of civilizations that develop a technology that
releases detectable signs of their existence into space
L - is the length of time such civilizations release detectable
signals into space

Maybe it is possible to change meaning of these funny
variables, eg.:
N - number of Android Challenge submissions
R - the average rate of people on the Earth
fp - the fraction of those people that have computer at home
ne - ... any idea?

Regards,
    haxahax

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