What's your profession? Age?

>>Please add another 6 years to everyone<<

Actually, it doesn't work that way. If the population density stays constant, then the graph is correct as is. The date you made your post does not matter. Density is density.

I realize this is not obvious to anyone without a mathematics background. But easy to illustrate. Instead of 6 years, what if the survey had been going on for 60 years? Got it?

jh

I realize this is not obvious to anyone without a mathematics background. But easy to illustrate. Instead of 6 years, what if the survey had been going on for 60 years? Got it?

jh

Not really, I don't expect that I'll be viewing this thread in another 54 years. :)

John

Thank you, Hagtech, for putting us "non-mathematical" types in our place.

Hi Biomimetic,
Yep! it's all a write off and more.

Well, hagtech, you are of course correct -- and obviously so, even to those of us without mathematics backgrounds -- yet the matter may be even more complex.

Your answer apparently assumes that the percentage of people in the population who are audiogon members would remain constant even as new members join and older members die or otherwise no longer participate. But this may not be accurate -- it may be that as younger persons raised on video and ipods mature, fewer grow into audiophiles, while those of us who are older are more likely to become and remain interested in hifi. If this is correct, then the population of audiogon may in fact be aging. But a further hypothesis may complicate matters more -- that younger audiophiles are more likely to be computer-literate, thus skewing the percentage of audiophiles who might participate on a site like this toward a younger demographic less representative of audiophiles as a group.

I don't have access to the data -- and to me it's a matter of passing interest only. But the people in charge of this and other sites might actually care about the age of the audiogon demographic.

And in response to the question, I'm a lawyer, age 54.