I remember history; late 19th/early 20th century Scientists were
pretty sure they finally had it all figured out. And the funny
thing is, they kinda did. But then comes Einstein, then comes
booms in technology, then comes the Internet - stuff only the
Sci-fi authors of the time were even considering as vague
possibilities, if they were at all. Makes me excited not for
what we've accomplished, but for what impossible dreams someone
is having today that will become a reality in 100 years time
that I couldn't even imagine* :)