How do people learn about things, and how has that already changed?
Heralds and town criers were once the name of the game. Regular news publications appeared in the mid 1500’s in Venice. Radio news arrived 100 years ago and caused a major disruption in the print business. TV came along 70 years ago and changed most everything.
Until the Internet, which triggered a massive decline in daily newspaper readership. In the US 62 million subscribers dropped to 24 million in 30 years.