Over the past 50 years we got versions of X-ray specs and space vacations, and even death rays. But the X-ray specs don't fit on your face - they're big things that screen your luggage for guns. Space vacations are real, but they cost $20 million. We have death rays, but you have to be a triple Ph.D. to play with them.
The poster boy for our superabled future is Oscar Pistorius, an increasingly famous South African sprinter who happens to have had both of his legs amputated below the knee. Using upside down question mark-shaped carbon fiber sprinting prosthetics, called Cheetah blades, Mr. Pistorius can challenge the fastest sprinters in the world.
I was writing a scene where a guy was choking another guy to death. You can go online and type 'chokeholds' and watch scenes where martial artists choke each other out. You can hear what noises they make when they go unconscious, see how their bodies flop and everything. YouTube is amazing for the more detailed stuff.