In The Original Series in the 60s, people had no idea what the future would look like or what technology would look like. In one of the early episodes, they had a paper print out machine on the bridge that looked like a fax machine, which was considered futuristic in the 1960s.
Like the example of the Enterprise fax machine, what technology or system do you think are we displaying in the current Star Trek shows that will show how dated we will become in the future?
The concept of cruise ships to another star was done really well with this book, which I highly recommend if you can find a copy:
https://www.goodreads.com/en/book/show/388947.The_Transgalactic_Guide_to_Solar_System_M_17
Here’s the cruise ship:
A luxury hotel:
And where would you be without entertainment?