That's what I meant by tongues as being a supernatural miracle but I neglected to state exactly what you did. That one speaker spoke but everyone heard, and understood, what was said in their own native language. Essentially the same thing that happens in a Speech at the United Nations except everyone else hears the speech in their own native language because there are interpreters who interpret what is said and translate it to the native language. In tongues there is no translator but rather every ear hears what is said in their own language. That is a miracle for sure. As I said though when someone purports to speak that unknown tongue or as some say the Holy Language I rather than judge it as something probable I just try and not judge it at all unless claims are made that are not backed up by scripture.
Claims such as if you cannot speak the Holy Language that you are not a Christian or that every Christian must have the gift of the unknown language or be able to speak in tongues.