After time travel, I don't understand the language or writing, and I don't know anything about life. Such a life is so miserable! What's even more tragic is that in the interstellar era, the population density of remote planets is so low that even with human feet, you can walk for three days without seeing another person! Such a low population density makes people in remote galaxies more dependent on the Internet. In other words, you can't do it without becoming a netizen! Because without the Internet, it is very difficult for you to talk to a second natural person-unless the other person is your family and lives with you.