Every day, Anicet Mbida makes us discover an innovation that could well change the way we consume.

This Friday, he is interested in a necklace that will be distributed to participants of the London Marathon this weekend to respect social distancing.

After being postponed, the London Marathon will finally take place this weekend (Sunday).

With a first: the participants will have to respect the distance and they will have a small collar to help them.

A collar with a mini electronic box that will scan everything around it.

And if another competitor is less than 1.50m away, their two collars will vibrate and flash to remind everyone to keep their distance.

The runners will not be the only ones to be equipped with it.

All athlete support and all members of the organization will have the same device.

This will make it possible to monitor both the duration and the frequency of contact between each other.

And to alert the officials if we don't respect the rules.

Suddenly, if someone tests positive for COVID, it will be easier to find all the people with whom they have been in contact.

Do we know the price of these boxes?

It must cost a fortune to equip everyone.

It's quite expensive, around 100 euros each.

But this year, there will not be 40,000 participants as usual.

With the pandemic, only the sports elite were invited.

Those who need to make time for the Olympics for example.

In the end, there will be only a hundred runners: men, women and disabled;

more than 500 people for supervision.

So they only need about 600 of these mini boxes.

But the price remains the main obstacle to the use of this technology.

Some would like to use it in badges or bracelets, whether in factories, restaurants or gyms.

Because it would finally make it possible to do without masks.

Except at € 100 each, it's unimaginable.

We will have to wait for prices to drop.