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Re:In a First, an Entire Organism Is Simulated by Software by technotony on Friday July 20, 2012 @03:04PM (#4272389)
According to wikipedia (http://bit.ly/SLQDiT) there are between 215 and 411 different cell types in the human body. I would expect each of those different cell types to behave similarly (maybe one order of magnitude difference to account for environmental effects around the specific cell). This means we should be able to do a human simulation much sooner than 80 years.
Re:In a First, an Entire Organism Is Simulated by Software by riffic on Friday July 20, 2012 @03:14PM (#4272438)
why are you using URL shortening? http://en.wikipedia.org/wiki/List_of_distinct_cell_types_in_... is better.
Re:In a First, an Entire Organism Is Simulated by Software by joe_the_user on Friday July 20, 2012 @03:22PM (#4272476)
It is an extraordinarily interesting question.

Having multiple sets of same cell would only speed up the simulation under some circumstances. In the most general case, it wouldn't. For example, if a cell itself is a Turing complete computer whose computations matter, then you definitely need to individually simulate each cell.