While the tech seems to be catching up in certain areas (if not the FTL drive), socially we're nowhere near what was depicted in Star Trek. It wasn't just post-capitalism but post-money. People no longer had to work for basic necessities. That is almost an unimaginably different setup to what humanity has always been used to. There's also a noticeable lack of crime and corruption, again something humans will have to extensively transform themselves in order to reach the goal...