English will be the common international language for the foreseeable future. It has almost no grammar that is really important. It's just a group of words cobbled together from around the world. It's easy to learn. Its only problem is that it's hard to spell because of all the historical interludes. It has 26 letters that most people know anyway. Chinese or anything like it has no chance. No one wants to learn 3,000 characters or hieroglyphs to read a newspaper. The Chinese won't even want to learn it long run. You could think of English as a proto-AI - a first step toward artificial intelligence that made us able to communicate seamlessly, while also making us all stupid.