Comment by PaulDavisThe1st

> a lot of semantic ambiguities that do not exist in other languages,

This is actually another strength of English, not a weakness.

> one can easily construct an artificial language that would be even better than English from this point of view,

The history of artificial languages (Esperanto in particular) is not encouraging in this regard.

> Thus English does not really have any technical advantages.

I wasn't really trying to suggest a technical advantage, but rather a cultural one. English users, as a worldwide bloc, are really incredibly open to loan words, modified grammar, and even whole new vocabulary. All of this happens in other languages too, but the culture of english makes or allows it to happen much faster and much more broadly.