Serious Simon and Emotional Elizabeth use the Time Barrier to travel to different
doctorwhoish pasts and presents, never meeting the Time Lord himself, of course, but
sometimes meeting versions of themselves and their families.
Old Beth: Sometimes in life you have to make decisions and hope
they come out for the best. You’ll know about that soon enough.
Young Liz: But I’ll never make your decisions, will I?
Old Beth: Then how did I come to make them? We’re the same, Liz. But
I’m like a person You’ll never be, and you’re like a person I never was, never.
1 English variant