Mark Twain figured that out as early as 1867, observing that ‘travel is fatal to prejudice, bigotry, and narrow-mindedness’.39 This is not to say we need to change who we are. Quite the opposite. Among the most notable findings to come out of contact science is that prejudices can be eliminated only if we retain our own identity.40 We need to realise it’s okay that we’re all different–there’s nothing wrong with that. We can build strong houses for our identities, with sturdy foundations. Then we can throw open the doors.