1863 London Winter Time A young man is heading to the theater.

He can't get there fast enough because there is a lot of excitement around this play.

It's called The Haunted Man.

It's based on a story by Charles Dickens.

In fact, Dickens himself might be in the audience tonight.

The man gets to the theater, takes a seat.

Onstage he sees another young man, an actor playing a student, working late at night at his

desk.

Suddenly a ghost appears on stage.

This isn't an actor walking on announcing he's a ghost like Hamlet's father.

This looks like a ghost.

I mean you can see right through him.

The audience gasps and the ghost is gone.

2023 London Summer Time A man in his 60s is heading to a concert.

He's excited.

There's a lot of buzz around this new show.

And when he finally gets to the arena, the lights go down and the group Abba appears

on stage.

They look exactly like you remember when he was a teenager.

In fact they literally look like they did in the 1970s because they're not really there.

They're holograms.

These two performances are taking place 160 years apart.

...