Those issues never really changed. The practical details have, but the concept has not.
There are certainly signs of a downfall coming shortly. Just the idea that the life expentancy of the current generation in america is possibly lower than that of the one before it (despite huge advances in medical technology) is a very interesting concept... aspecially as this is -not- the case in countries of similar development level in europe or even asia.
An interesting movie to see is 'Idiocracy', which was probably intended to be mostly funny but also touches the subject of doing what a majority (of a very media inflenced) public wants.
One major thing i noticed is that people do no longer understand how items they use in their every day life (like cellphones, computers or even cars) work. This may make us very vulnerable as most people are becoming unable to fix or re-create anything anymore.
Somehow i think we would build an archive that details evertyhing required to get from the stone age back to modern era, just in case something goes wrong very badly. Something like that should be chiseled into stone really, at least up to the point of developing proper semiconductors after which more complex designs could be stored digitally.