Griffin and Harper realise that Savannah could have found the portal and travelled back in time, too; together, they go back in time another 30 years to 1960.
A religion is a belief system with rituals. The missionary kopimistsamfundet is a religious group centered in Sweden who believe that copying and the sharing of information is the best and most beautiful that is. To have your information copied is a token of appreciation, that someone think you have done something good.