By John Timmer, Ars Technica
How much information can the world transmit, process, and store? Estimating this sort of thing can be a nightmare, but the task can provide valuable information on trends that are changing our computing and broadcast infrastructure. So a pair of researchers have taken the job upon themselves and tracked the changes in 60 different analog and digital technologies, from newsprint to cellular data, for a period of over 20 years.
Lest we get too enamored with our technological prowess, however, the authors make some comparisons with biology. "To put our findings in perspective, the 6.4*1018 instructions per second that human kind can carry out on its general-purpose computers in 2007 are in the same ballpark area as the maximum number of nerve impulses executed by one human brain per second," they write.
Our total storage capacity is the same as an adult human's DNA. And there are several billion humans on the planet.
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