> There’s also a twist on the Nested Sets model, called the nested interval model, where the nodes are given two numbers that represent the numerator and denominator of a fraction, but it doesn’t seem so popular, and was too complex to wrap my head around!
...and the author just wrote-off the best performing generic tree solution, because "it was too complex to wrap my head around!"
...and the author just wrote-off the best performing generic tree solution, because "it was too complex to wrap my head around!"
:facepalm: