他们的立场是基于这样的信念：发达经济体不可能重复美国1995~2005年（其他先进经济体也随后跟进）所享有的活力，更不用说1950和1960年代那种好日子了。
Their stance is underpinned by the belief that advanced economies cannot hope to repeat the dynamism that the US enjoyed from 1995-2005 (and other advanced economies a bit later), much less the salad days of the 1950s and 1960s.