A smart city that knows everything about you.

From how you like your coffee, to whether you've broken the law.

Or even if you've grown a beard.

Sound far-fetched?

While the smart city we're about to tour doesn't exist yet,

all of the parts do.

They're all components of real projects

happening all over the world.

Put them together and this is what life may well be like

in the not-too-distant future.

You go to work, your office building knows exactly who's coming and going

and what they need, thanks to thousands of inbuilt sensors

collecting data.

The energy efficient building is designed for your comfort,

reacting to changes in the weather and the number of people

in the building and adjusting its climate accordingly.

Wherever you sit, the lighting will adjust to suit your preferences.

The building will even recall your regular coffee order

and there's no chance of it getting your name wrong.

On your way home, you pass lamp posts laden with sensors and HD cameras

that monitor and record the world around them 24/7.

Air quality and traffic flow data tell you the quickest

and cleanest route and alert emergency services to accidents.

You arrive home, to a nutritious meal made from locally grown avocados

using hydroponics, so no need for soil.

Sensors allow urban farmers to make constant adjustments to temperature,

light and water and monitor the plant's responses,

so it's easier and cheaper to grow fresh food in cities.

The level of control smart technology gives can also be used

to make food tastier.

In Singapore, they've already found a way to make kale sweeter and softer,

so even the fussiest of eaters will enjoy their greens.

Your health is flourishing, thanks to your perfectly balanced diet

but you also regularly update your doctors using data sent directly

from your smartwatch.

They analyse it and prescribe personalised drugs and supplements

that are quickly 3D printed just for you.

Your baby stirs and you're alerted by its smart blanket.

Reassured that all is well, child mortality rates are at an

all time low, you go to bed but the sensors in the street never sleep.

They're busy policing antisocial behaviour, identifying people smoking

in unauthorised zones or throwing rubbish from high-rise buildings -

crime rates are negligible.

While much of this might sound pretty idyllic, it is not without issues.

Smart cities go hand-in-hand with gathering and storing huge amounts

of personal data and using it to control city life.

For governments keen to control certain populations,

this is an incredibly powerful tool.

Every moment of your daily routine can be tracked, anyone with access

to this data can find out where you live, where you go every day,

the places you visit at night and who you're with.

This data can be used by people with far more nefarious aims

than making you the perfect soya latte.

You could leave your phone at home, with an advanced facial recognition

CCTV in the mix, authorities can easily keep tabs on you.

In places like Xinjiang in China, where growing a beard can already

get you reported, this is a frightening prospect.

So are the benefits of a smart city worth giving up privacy

and freedom for?

Can governments and corporations be trusted with such huge data sets

on all of us? What happens if there's a mistake in the system

or you want to overthrow the system itself?

Whether you think smart technology means we're sleepwalking

into a dystopian future or enabling us to live a vastly more convenient

and sustainable lifestyle, it's coming soon to a city near you.