Z:gnu-www-ja-copyright-versus-community--208f59-But why ten years? I don't kno/en

But why ten years? I don't know about in this country, but in the US, the publication cycle has got shorter and shorter. Nowadays almost all books are remaindered within two years and out-of-print within three. So ten years is more than three times the usual publication cycle&mdash;that should be plenty comfortable.