C55 Damn It Dior Had Installed It 8k First Order Please(2)

It's like the era of landlines, where everyone can memorize the commonly used phone numbers, and even the TV programs of the competition.

But later on, each of them had a phone, and there were hundreds of phone numbers stored in their contact list. How many people could memorize a large number of phone numbers?

It was the same for the people of the Empire