A positive externality or an external benefit that occurs if some of the benefits of the production or consumption of a product spillover into a third party that does not have to pay and even if you don't get vaccinated and others get it first.
While a negative externality or the diseconomy is one that imposes a negative impact and effects on the unrelated third party and due to it imposes the costs to the product and the services of polluting effects.
Technology can help people to become more motivated to do their work as modern technology is easier to use and access than other ways of getting information (such as going to the library)