In 100 years, there better be some goddamn flying cars. I don't need a Jetsons scenario or anything, but I expected something better than the crappy system we have going on now. Although, now that I think about it... it'll probably be worse to have people blowing stop signs hundreds of feet up in the air.
I'll step away from my doom-and-gloom scenario for a second here. Maybe we won't blow ourselves up or ruin our planet. Maybe we'll finally take a good look around and be like "Woops, oil really WAS limited!", and find something better. Cleaner. We'll have some cool nano-tech shit to play with. Maybe we'll speed up evolution in ourselves to become better, faster, stronger. Or maybe we'll mess some shit up and all grow tails.
Maybe waiting in line at Starbucks will take 2 seconds instead of 2 minutes.
Maybe we'll finally have a cure for Shitty Monday-itis. Or, you know... cancer.
And maybe, just maybe, they'll develop a remote that allows you to mute that lady you work with who has the really obnoxious laugh. Everyone has one of those.