The funny thing about the future is the fact that we cannot even predict what will be after 25 years, let alone after 250 years. For example just see the development of the computers and of the mobile phones.

If someone would have said in the 1990s that we are going to record videos with our phones in the future, then most people probably would have said that "this person is crazy/insane".

The same goes for stating the fact that the mobile phones of the future will be much more powerful than today's computers. And yet both of these statements are true. Nowadays you can do much more with a smartphone than what you was able to do with a PC in the 1990s.