１回顾随着２０００年的日益临近，（许行多信息学家仍面临“千年问题”的恐惧）有关廿一世纪各种潜在和可能出现的问题的著作在不断面世。自然，我们都想看看下一个十年、百年、千年会是个什么样子，因为２０００年成为一条尽管在一定程度上人为却异常清晰的分界线。同时... 1 Review With the approaching year 2000, Xu’s multi-informants still face the fear of “the millennium problem”. There are many books on various potential and possible problems of the 21st century. Naturally, we all want to see what the next decade, centuries and millennium will look like, because in 2000 it became a demarcation line that, although to a certain extent, was artificially and exceptionally clear. Simultaneously...