Apparently, there was mostly miscommunication and the two of us probably agree entirely at the end of the day. The ad hominem aspects of my post weren't warranted really, and I don't care to explain why I fell into it in this case. I didn't mean to be snarky or violent or anything.

Anyway, the post I was replying to didn't say that the difference is due to convention, it asserted the difference didn't exist.

And I stand by my points about rhythm (which I think @nerflad would agree with in the end incidentally).

The "strong and weak" part from Wikipedia only exists in music in the mind of a person. It's not musically strong or weak based on physics of sound waves. Whether something is loud or quiet can be relevant to describing rhythm generically, but music is 100% subjective.

Human beings predictably experience certain musical things in certain ways, especially those from the same music cultures. But a full 100% of everything in music is only music when there are listeners (or just imaginers) having a subjective experience. Otherwise, there is no music. Pressure waves in air or dots on paper are not music.

I don't care what Google's dictionary says. Describing a trite, pithy one-sentence thing for a complex concept is necessarily going to be simplistic.