Could be something like this: https://www.bbc.com/news/world-europe-16614209 https://www.bbc.com/news/world-europe-16614209 Because allow a people to share inf

Could be something like this: https://www.bbc.com/news/world-europe-16614209 https://www.bbc.com/news/world-europe-16614209 Because allow a people to share information without physical contact each other. Example - person 1 went to park, smoke a cig and transfer data to intermediate device. After 3-4 days person 2 went to park, feed ducks and get data from intermediate device. Of course this happens wireless and no physical contact.