السلام عليكم ورحمة الله وبركاته While the statement is true in general, there is also another part, for other things even better things were able to be produced. Take the example of movies. Maybe there is one movie but another movie in the same genre was been able to be produced. As for the Qur'an, neither could something better be produced, nor anything like it, not even verses, let alone the whole book. It is true, for non-Arabs it will be a bit harder to figure this out hence it's an obligation for us to learn Arabic, once you've learned even basics you will already start seeing the miraculous nature of the Qur'an. Question should be though, what exactly is the miracle? There are many answers to that: 1. Precision in speech. There are NO SYNONYMS in the Qur'an. Every word is specific for specific things. Human speech is not like that. We synonyms a lot, there is no such thing in the Qur'an 2. The message is apolying to past, present and future, it's universal no matter what era one lives in 3. Prophecies that came and will come to pass which no one can deny 4. Historical narrative, where the Qur'an corrects events from the past 5. Eloquence in speech (Arabic is needed for this one to understand) 6. No contradictions Now, these are just some things that can be said about it. You can read some things about it here: https://www.islamic-awareness.org/quran/miracle/ Also, what needs to be understood is that the challenge is for everyone and even those who claim they don't know Arabic, Allah does not say you can't seek aid from those who do. When you open the link you will find all those who attempted the challange and failed. Those were Arabs with high level of understanding of the Arabic language. I hope this sheds at least some light in sha'a Allah. I can't tell you all details, but I just told you what I know. Wa Allahu a'alam