I'm going to give an answer to the question "what do you think about the fact there's a dilemma in our modern globalized world. Whether to keep our 7000 or 8000 different languages or make the world as one with one language."
I think there are negative and positive effects if we all speak one language. First I'm going to state some positives: trade will be easier because there will be no language barrier, also if we al speak one language the European Union won't have to spend so much money on translating everything to 23 different languages, this will save them a lot of money (billions). This money can be used for other things, we need that money, especially now. If you go on vacation to a foriegn country it will also be nice to be able to speak to the foreign people without any problems.
An obvious negative effect is that all teachers who teach students a foreign language will lose their jobs. Another thing is that it is very difficult to learn a new language, if you want people to speak one language they will probably have difficulty learning this new language.
I'm against everybody speaking the same language, it will be too difficult to make everyone speak this one language and I like the variety of languages there are in the world.
