0:00:02 > 0:00:04- Hello, Hugo!- Who, me? - What do you know?- Let's see...
0:00:04 > 0:00:07# I know there's a lot I don't know
0:00:07 > 0:00:10# I like questions that lead to questions
0:00:10 > 0:00:13# Ask away, let's see where we go! #
0:00:13 > 0:00:14OK!
0:00:14 > 0:00:16# What is work, what is play?
0:00:16 > 0:00:18# Why do walls get in the way?
0:00:18 > 0:00:20# Where is love, what's a friend will my questions never end?
0:00:20 > 0:00:22# What is fear?
0:00:22 > 0:00:24# Why do we laugh?
0:00:24 > 0:00:27# Why do I hate to get wet but never in the bath?
0:00:27 > 0:00:29# Why is this not that?
0:00:29 > 0:00:30# Why is that not this?
0:00:30 > 0:00:32# Who, where, when, how?
0:00:32 > 0:00:34# What's the big idea? #
0:00:34 > 0:00:35Yes!
0:00:35 > 0:00:38# What's the big idea? #
0:00:44 > 0:00:48- Hey, Lily! Felix!- Hello, Hugo! - Hello, Hugo!
0:00:48 > 0:00:54I was wondering, how do we know the things we know?
0:00:56 > 0:01:00I think we know things because we can see them, Hugo.
0:01:00 > 0:01:03Like I know that it's sunny today.
0:01:03 > 0:01:07- HE SNIFFS - Or because we can smell them.
0:01:07 > 0:01:10Like I know there are flowers.
0:01:11 > 0:01:13HE SNIFFS
0:01:13 > 0:01:16Or because we can hear them. BUZZING
0:01:16 > 0:01:19Like I know there are bees.
0:01:26 > 0:01:28Or because we can taste them.
0:01:30 > 0:01:31Mmm!
0:01:31 > 0:01:34Like I know there is honey.
0:01:36 > 0:01:37THUD!
0:01:37 > 0:01:38BUZZING
0:01:38 > 0:01:42And I know an elephant just fell from the sky!
0:01:42 > 0:01:44I can't believe that!
0:01:50 > 0:01:53Where did that come from, Hugo?
0:01:53 > 0:01:56Perhaps we'll find out later.
0:01:56 > 0:02:03But do we only know things that we can see or smell or taste? Or touch?
0:02:03 > 0:02:05Let me think.
0:02:09 > 0:02:11CHEERING
0:02:12 > 0:02:16She knows that she feels alone.
0:02:16 > 0:02:17SHE SIGHS
0:02:17 > 0:02:21HE GROANS
0:02:21 > 0:02:24And I know that this elephant...
0:02:24 > 0:02:26is heavy!
0:02:26 > 0:02:28THUD!
0:02:28 > 0:02:33You know lots of other things, too, Hugo.
0:02:33 > 0:02:37- CHEERING - You know how to play games.
0:02:37 > 0:02:39You know how to ride a bicycle.
0:02:44 > 0:02:47And tidy your bedroom.
0:02:51 > 0:02:53And make friends.
0:02:55 > 0:02:59THEY GROAN
0:03:01 > 0:03:05But how do we know things don't happen when we're not looking?
0:03:10 > 0:03:13How do we know elephants can't fly?
0:03:17 > 0:03:21Because they might fly when we're not looking.
0:03:22 > 0:03:27I think we have to think of everything we know about elephants,
0:03:27 > 0:03:32- and about flying.- Yes! Then we can work it out.
0:03:32 > 0:03:36So what do we know about elephants?
0:03:36 > 0:03:38I know they're big.
0:03:38 > 0:03:41I know they're grey.
0:03:41 > 0:03:43I know they're heavy.
0:03:43 > 0:03:46And what do we know about things that can fly?
0:03:46 > 0:03:50I know...flying things are light.
0:03:50 > 0:03:52Except for aeroplanes.
0:03:52 > 0:03:56I know flying things are pointy.
0:03:56 > 0:03:59Except for bubbles and balloons.
0:03:59 > 0:04:02I know they all have wings.
0:04:02 > 0:04:06Like bubbles and balloons? Hmm.
0:04:06 > 0:04:09All living things that can fly have wings.
0:04:09 > 0:04:14And an elephant is a living thing that doesn't have wings, so...
0:04:14 > 0:04:18BOTH: Elephants can't fly!
0:04:18 > 0:04:24Unless maybe you tied one to a giant balloon!
0:04:24 > 0:04:27No, that's just silly.
0:04:27 > 0:04:29THUD!
0:04:36 > 0:04:39They definitely, definitely, definitely fly.
0:04:39 > 0:04:44But what if someone tells you that they've definitely, definitely,
0:04:44 > 0:04:49definitely seen an elephant with wings, and it was flying?
0:04:49 > 0:04:55Should you believe them? What do YOU think?
0:04:55 > 0:04:58Subtitles by Red Bee Media Ltd