In terms of information processing, that is. Notice in this article the comparison between all the information in the world, the DNA in your body, and the neuron activity in a single human brain.
Martin Hilbert, of the USC Annenberg School for Communication & Journalism, is the lead author of a paper published in Science Express, which has a go at calculating …
the world’s total technological capacity — how much information humankind is able to store, communicate and compute. …
So how much information is there in the world? …
Prepare for some big numbers:
… the researchers calculate that humankind is able to store at least 295 exabytes of information. (Yes, that’s a number with 20 zeroes in it.) … That’s 315 times the number of grains of sand in the world. But it’s still less than one percent of the information that is stored in all the DNA molecules of a human being.
…In 2007, all the general-purpose computers in the world computed 6.4 x 10^18 instructions per second, in the same general order of magnitude as the number of nerve impulses executed by a single human brain.
How much information is there in the world? (Boldface emphasis added.)
And this article adds to it! Just doin’ my part of the petabytes.
Update: this story also here (information repeated is not information, so this does not add to the overload): BBC News – Global data storage calculated at 295 exabytes