We probably didn't know that it never happened before.
3a) During the speech, we usually only focus on the President and not much else.
3b) Trump was smooth talking the whole time. If there was any moment of silence or even filler words (such as uh, erm, or you know) then we'll definitely notice the background.
I watched this live and didn't catch on. I saw this a few years ago and wondered how I didn't notice!
It lasted only 45 seconds.
We probably didn't know that it never happened before.
3a) During the speech, we usually only focus on the President and not much else.
3b) Trump was smooth talking the whole time. If there was any moment of silence or even filler words (such as uh, erm, or you know) then we'll definitely notice the background.