Virtual worlds.

***Yes they've been around for a while but have not reached their full potential, but when they do, a new addiction will flood the therapists' offices. Current Games already capture a healthy share of youthful minds. When they begin to recognize the virtual world as a real world, look out!&&&

'Alternate-powered vehicles

***I chose 'alternate' over electric to accommodate other sources of power other than fossil fuels. This will have an immense effect on the world's ecosystem as one source of greenhouse gas is eliminated.***

Gene Therapy

***I don't think anyone needs a justification for this emerging medical breakthrough.***