[vishal0123]

Long form messaging like letters is close to dead due to the effect of telephone and SMS.

Internet eliminated the need to go to library to find information.

Hell, even books/writing changed the way people acquired and stored information and people no longer needed to be present in the university. Plato was against writing in a time when writing was just becoming accessible in a widespread way, and in just 2000 years we literally can't imagine a world without writing.