Marval - 1:49 am on Mar 11, 2005 (gmt 0)
Ive often posted that I dont believe that the sandbox actually even exists but is actually the result of a particular filter that was instituted back during the heydays of buying expired domains, that basically placed a filter on new domains with a certain number of "prompt new incoming links" compared to an average "latent incoming link average" based on history of either that specific domain (which seems far fetched computing power wise) or averaged over the entire "new site" population.
It is the only way that I can explain some new domains having no problem what-so-ever getting into the index within 1-2 of the "old" update cycles and some domains taking 6 cycles to get in.
This is also just based on a few hundred domains testing so it might not be a good statistic over the whole web and is only based on those few hundred domains bought and developed since the discussion of sandbox started. The other factor that I believe is in play is that in the case of these domains they were all developed with non-dynamic content so they do not represent any of the new dynamic/generated pages for "new sites" out there.