Are closed stacks really “Library 1.0”?

Ross posted a neat link over on NEWLIB, Selections from A Portfolio of Carnegie Libraries, he wrote “One design element I found interesting in all of these buildings, however, is the fairly extensive use of closed stacks. I seem to recall these sort of design was fairly common unti the 1920’s or 30’s when open stacks became the norm? Considering issues of security and theft, I’m wondering if closed stacks–or at least more restrictions to access–is going to become more commonplace in public libraries again?”

This from a post Are closed stacks really “Library 1.0”?: “If providing patrons with quick, easy, and reliable access to library resources is Library 1.0, I’m not sure I want to be Library 2.0”