Yeah, but 11 years ago getting from NY to London in less than 4 hours was an everyday thing (if pricier than other flights). Now it's unheard of.
Yes but it was sort of like the pony express shutting down their rush service because the telegraph arrived, maybe that sucks if you wanted to send a package but for the 95% that wanted to send a letter the telegraph was faster and better. Not every aspect of every old service is going to be preserved by the new ones, there will always be some regressions in the overall picture. Even though we're making incremental improvements I doubt we'll see any revolutionary changes in things like jet propulsion, internal combustion, gas turbines and whatnot - it's just minor tweaks to squeeze more efficiency out of it.
The overwhelming number of changes I expect is for things to get smaller, smarter and for more and more things to go electronically rather than physically and applying brute force. Maybe you get another 5 mph on the interstate but the main difference is an AI that drives itself. My dream of "real technological development" would be things like having nanobots to destroy bacteria, viruses, toxins, cancer cells, cure genetic diseases and prevent aging on the cell level. In the future maybe we all have personal assistants like only the rich have today, only they're robotic. It couldn't be done today because to have servants somebody would have to be the servants, but we could all have a robot the way we all have cell phones.
I'm not going to bash the system we have today, I can go down to the grocery store and buy a finished meal, pop it in the microwave and put the dishes in the dishwasher but it certainly could be taken to the next level where I just tell a robot I'd like spaghetti bolognese today and it'd shop, cook like a professional chef, serve and clear the tables when I'm done. Having a washing machine and a dryer is also rather relaxed, but again being able to throw dirty clothes in the bin and have them sorted, washed, dried, ironed if applicable and put back in the closest by themselves would be even better. Roombas and electronic lawn mowers are just a shadow of what robot housekeepers and gardeners could be. In short, even if I don't see flying cars on the horizon I see plenty things that could make life in 2013 seem rather primitive compared to 100 years from now.