scientists can also tell us what will befall the "fortunate/elite" in their bubbles after just a very few generations of inbreeding. look at the genetically corrupt lines of royalty still in existence today in Europe. all manner of genetically linked medical conditions showing up. "you are...the weakest link!" the same will happen to the bubble folks without some serious genetic input from somewhere...look at what happened to golden retrievers - they used to be great hunting dogs, sharp as tacks, easily trained. folks inbred (linebred to breeders, they refuse to use the term "incest") for looks, now the poor things can't eat, shit, or get out of their own way. but they ARE pretty...
there's probably enough of the public's genetic information and dna stored someplace that they can make gene modifications and not have to inbreed. human gene splicing, human genetic modifications and lab grown people are probably the future