An interesting survey of How much information is produced annually. The short answer is 250Mb for every person on earth – 93% of which is in digital format. The authors (from Berkeley) offer a lot of supplemental data as well. For example, until 1992 most TV stations broadcast no more than 9.5 minutes of advertising per hour in prime time – now the average is 15 minutes. Ouch! I thought things were worse there – here in the UK the terrestrial channels can only show 7.5 minutes an hour and cable only 9 minutes an hour (plus, of course, the BBC is completely ad-free).
19 May 2001
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