1
00:00:00,720 --> 00:00:02,276
It's a big world out there.

2
00:00:02,276 --> 00:00:05,341
Billions of us trying to live, love, prosper,

3
00:00:05,341 --> 00:00:08,684
and make sense of our brief time on this planet.

4
00:00:08,684 --> 00:00:10,960
Since the dawn of humanity, we've been passing

5
00:00:10,960 --> 00:00:13,375
information from one person to another through

6
00:00:13,375 --> 00:00:15,047
a common language.

7
00:00:15,047 --> 00:00:17,276
Unfortunately, you can't communicate with others

8
00:00:17,276 --> 00:00:19,760
without knowing or learning their language first.

9
00:00:19,760 --> 00:00:23,127
A similar issue is manifested on the web where

10
00:00:23,127 --> 00:00:25,728
text can be penned in dozens of different languages,

11
00:00:25,728 --> 00:00:29,420
each of which demands a reader's fluency.

12
00:00:29,420 --> 00:00:31,626
We've developed an elegant solution to both

13
00:00:31,626 --> 00:00:33,971
problems -- a way for you to learn a language for

14
00:00:33,971 --> 00:00:36,362
free, while at the same time helping to translate

15
00:00:36,362 --> 00:00:38,801
text from the web, enabling a wealth of

16
00:00:38,801 --> 00:00:41,796
language-shackled information to be liberated for

17
00:00:41,796 --> 00:00:44,675
all of humanity. It's called "duolingo".

18
00:00:44,675 --> 00:00:48,019
Here's how it works: Let's say you're a native

19
00:00:48,019 --> 00:00:50,503
English speaker who wants to learn Spanish.

20
00:00:50,503 --> 00:00:52,640
We start by giving you a sentence from a Spanish

21
00:00:52,640 --> 00:00:54,822
web site and asking you to translate it.

22
00:00:54,822 --> 00:00:56,471
Wait. Back up.

23
00:00:56,471 --> 00:00:59,025
How can you translate a language you don't know?

24
00:00:59,025 --> 00:01:02,508
First, duolingo only gives you sentences that fit

25
00:01:02,508 --> 00:01:05,457
your language level. Beginners get the really simple

26
00:01:05,457 --> 00:01:08,383
sentences from the web and advanced users get the

27
00:01:08,383 --> 00:01:09,939
more complex ones.

28
00:01:09,939 --> 00:01:13,282
This way, everybody becomes a valuable translator.

29
00:01:13,282 --> 00:01:15,999
And second, if you're really lost, you can always

30
00:01:15,999 --> 00:01:18,855
see possible translations for words you don't know.

31
00:01:18,855 --> 00:01:22,338
Afterwards, duolingo helps you understand and

32
00:01:22,338 --> 00:01:24,544
memorize the words you hovered over through

33
00:01:24,544 --> 00:01:26,355
educational examples.

34
00:01:26,355 --> 00:01:28,793
You can also vote on the quality of other students'

35
00:01:28,793 --> 00:01:31,463
translations, which helps you learn by seeing how

36
00:01:31,463 --> 00:01:33,948
others translated the same sentence.

37
00:01:33,948 --> 00:01:36,920
And because you create valuable translations while

38
00:01:36,920 --> 00:01:40,032
you learn, we return the favor by offering duolingo

39
00:01:40,032 --> 00:01:44,141
completely free of charge: no ads, no hidden fees,

40
00:01:44,141 --> 00:01:46,905
no subscriptions. Just free.

41
00:01:46,905 --> 00:01:50,573
To put the potential benefit of duolingo into

42
00:01:50,573 --> 00:01:53,104
perspective, think about this: if one million

43
00:01:53,104 --> 00:01:56,030
people would use duolingo to learn, the entirety

44
00:01:56,030 --> 00:01:59,258
of English Wikipedia could be translated to Spanish

45
00:01:59,258 --> 00:02:01,487
in just 80 hours.

46
00:02:01,487 --> 99:59:59,999
Duolingo: Learn a language while translating the web.