Humans can adjust to so much honestly. Which is why I get annoyed about the assassins trying to keep secrets as they do, but ho-hum. And Jacob will want to hear about Marty's adventures, even if he doesn't really understand some of the concepts. Computers etc are so far off his radar, it's painful.

Whahahaha- older Jacob can tell you some terrifying stories about the 1880s. But I won't go into that now.