> You can preserve culture and language, while simultaneously forcing everyone to learn English.
Nope, because culture and language are deeply intertwined. Over time, people would use their native languages less and less, and then entire cultural swathes of knowledge will be lost.
Next, no one will ever agree on one language. Not English, not Chinese, nor any made up language. Especially not an existing real language, for any number of reasons.
There are also concepts in different languages that are difficult to translate or grasp in other languages. Translation isn't a 1:1 rote task.
> I think it's about time humanity decides to stop the ego trip and declare english as the earth official language.
There is no "ego trip" going on here. The only "ego trip" is assuming that we can simply force everyone, unilaterally, to speak X language.
> Peace, democracy, exchange, cooperation, archiving, education: they are too hard to do in hundreds of languages. It's a waste of resources, and a hindrance to the most important challenges of humanity.
[Citation needed that this is better than forcing 1 language on humanity, which will almost certainly only happen with supreme military force, aka wars.]
> written chinese is way too complicated
Subjective.
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Translation is a problem that we have to deal with, but it's better than trying to force one language.. People and societies cannot be engineered with a hand-wavy solution of "oh, just 1 universal language".
This is a very stereotypical hacker news viewpoint of blithely trying to "engineer" life and humanity, as if it were so simple.