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# Cushman Blog Talk 2008

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• Reed’s Law or Group Forming Network Theory as Dr David P Reed* originally and rather modestly called it, is the mathematical explanation for the power of the network. It’s breathtakingly simple, easy to understand and enormously enlightening. I hope to explain it a little and add some more recent understandings of the collaborative power of networks which I hope will make sense of and give context to the exponential.
• ### Cushman Blog Talk 2008

1. 1. Reed’s Law and the demand curve David Cushman EMAP
2. 2. What is Reed’s Law? <ul><li>… where n is the number of participants . </li></ul>The number of possible sub-groups of network participants is 2 n - n -1
3. 3. Sarnoff’s Law <ul><li>The value of the network grows in proportion to the number of viewers. </li></ul>
4. 4. Metcalfe’s Law <ul><li>Network grows in proportion to the number of nodes on the network (n squared). </li></ul>
5. 5. Reed’s Law
6. 6. <ul><li>“ I am made greater by the sum of my connections – so are my connections ” </li></ul><ul><li>Stowe Boyd </li></ul>
7. 7. Network with purpose
8. 10. Blacksmith -
9. 11. I am part of a community , therefore I am
10. 12. Father/son/Holy Smoke!
11. 13. The edglings want more! The edglings want more
12. 14. An adjustment? <ul><li>2 n(x) - n -1 </li></ul>
13. 15. 2 n(x) -n-1
14. 16. Because we’re more than ‘N’ We are more than just ‘n’
15. 17. So what about the demand curve?
16. 18. The long tail…
17. 19. The Long Tail gets a little longer
18. 20. Join the conversation… <ul><li>FasterFuture.blogspot.com </li></ul>