WHAT IF MY COLORS ARE DIFFERENT THAN YOUR COLORS
They are, because people having varying numbers of Rods and cones in their eyes, it causes people to see colours differently.
Also there is a theory that everyone sees, for example, the colour red differently eg Red=yellow, but because we’ve been taught that, that specific colour is red, no one knows if everyone is seeing the same colour as another person.
Just a pool, disguised as a pond, with a trampoline instead of a diving board.
I wrote a paper about these kinds of pools several years ago for a class when they were just prototypes. These pools have a natural filtration system that run based on the plants that are in the pool that give the water nutrients that allow it to not only be crystal clear, but you are also able to drink the water because it becomes so clean. And the best part is that once the initial filtration system is installed and calibrated, it maintains itself and eliminates the need for chlorine or constant maintenance like salt water pools.
A muggle-born’s sibling sends them a howler in the middle of the school year and it arrives while they eat. When they open it, all it does is simply scream “WHAT TEAM?”. Nearly all the muggle-borns shout “WILDCATS!” before returning to their meal, leaving the pure-bloods in total confusion of what the hell they just witnessed.
I accept and fully support this headcanon