Hacker News Reader

The water cube was such an epic pool - extremely deep and the level perfectly flat rather than elliptical. I still have dreams of swimming in it

What do you mean the level was perfectly flat vs elliptical? The surface of the pool? I'm confused

I had the memory that race pools were deeper in the middle but I think that may have changed especially as I haven't competed since 2008

Here is a source from 2012 which shows pool depths weren't always uniform but it seems more modern pools are