Q: I heard this really good description of "time" in the form of a riddle from my musical mentor. He asked me "let's say you are rafting on a river. There are slow parts and fast parts. So if the fast part is going faster than the slow part, then why isn't there a gap in between the fast and slow parts where there isn't any water?" and I knew how rivers worked so I told him "the size of the river changes" and he was like "yes! That's how good time works! it can speed up or slow down, but there is always the same amount of 'water', and when people aren't very good at keeping time, there are these wedges in the river where there is empty space." I love this analogy but I still don't fully understand the "water" part in terms of music. Do you have any ideas?
A: i actually don't understand the analogy