everything about the constitution is currently based upon interpretation, mostly by the courts but also by the other two branches having their impact on gov't, society and our ways of living.
noone who authored the constitution are now alive. only their thoughts live on, as interpreted by the powers that be.
change is inevitable. we've seen nothing but various rates of change since the ratification. nothing has changed in that regard, nor likely to do so.
if and when "progressives" capture the scotus, then we'll all be dead. and that means our descendents probably placed the progressives in power. change is a two-edged sword.
