In terms of production, this means that you only use what you need and so there wouldn't be any waste.
The notion that you could create anything at all has major implications for our health.
It means that we ll eventually be able to replicate anything.
This would have a phenomenal effect on our society.
In time it could even lead to the eradication of famine through the introduction of machines that produce food to feed the hungry.
But it's in the area of medicine that nanotechnology may have its biggest impact.
How we detect disease will change as tiny biosensors are developed to analyze tests in minutes rather than days.
There's even speculation nano-robots could be used to slow the aging process, lengthening life expectancy.
As you can see, I'm very excited by the implications that could be available to us in the next few decades.
Just how long it'll take, I honestly don't know.
That's the end of section 4, you now have half of a minute to check your answers.
That's the end of listening test.
In the IELTS test, you will now have ten minutes to transfer your answers to the answer sheet.