text_combined: tim bray tbraytextualitycom thu aug 7 2008 156 harald alvestrand wrote well theres definitively total disconnect iesg recommendation w3c tags point view see ongoing discussion tag mailing list xri scheme discussion long gnarly summarize without touching actual technical issues strong perception among quite people notably including tag xri people dont understand technologies theyre trying replace many statements beginning xri needed challenged simply technically wrong tag fact clearly correct state introduction new uri schemes quite expensive comes matter costbenefit lot people convinced real benefit established xri relative existing web new uri scheme defined needs state identifies resolved identifies http resource resolution done via http seems dont need actually lots identifiers resolution requirement certain usages http particular use http urls xml schemas tended denigrate implication say regard identifier still usage prevalent enough people complained servers identified popular xml schemas getting hit enough extra traffic cause operational problems happened usually due clueless implementors famous case dtd uris appearing html certain developers remain nameless tried retrieve every time parsed html page surprise surprise didnt work real risk identifier used retrieve something used whether thats appropriate thats risk work plans tim _______________________________________________ ietf mailing list ietfietforg httpswwwietforgmailmanlistinfoietf thu 07 aug 2008 120808 0400 new schemes vs recycling http past lc comments draftietfgeoprivhttplocationdelivery08