@Caleb James DeLisle I always thought that was a very dumb line of thinking. Knowledge builds up generation after generation. Brains are very limited like that.
A lot experts in their respective areas will have their preferred dogmas that will be challenged only when they die. Science moves forward one corpse at a time and all that.
In terms of general opinions, there are always aspects of the past that prevent you from a having a completely distinct worldview. In the 90s, there was still a leftover chunk of the social contract between man and government and you could still remember farther back when it was more true.
Boomers hatred has very specific reasons because it was a bit of a watershed moment. Anyway, unless in 30 years we'll metagame away the being human part completely and become some kind of network-enabled bug hive, saying "wow, people X years back were dumb" is retarded social posturing and always will be.