Nothing can ever truly destroy the Silver Age. Those issues survive. Many are now in Archive form.
They live on, even though the stories may have been rendered obsolete, or as not having actually ocurred.
The spirit of the Silver Age will survive, long after the current era is no more.
"I offer you a Vulcan prayer, Mr Suder. May your
death bring you the peace you never found in
life." - Tuvok.
