3d printing.

I could ramble on but I think this technology will change the economic landscape in terms of cosumerism.

It's already being used to make all sorts of stuff from aeroplane wings to kidneys, and they're just getting started.

Remember when desktop printers first hit the market, a fad ? Now we all own one or two.

One flippant example, why buy golf balls when you can print a few out for you and your buddies before the next tee-off.

In terms of leadership I think this is the technology to watch, they're just getting started.

All in my unqualified opinion of course.