We have it partially divided into sub-models and I can and often do work on one of more of those separately from Scott, but he needs to be able to see most of it to judge how to handle the complex interactions between different parts of the building. The geometry is unusual and challenging.
And things have had to be reworked more than once, when a design decision carried on up the building proves not to work well, and lower floors then have to be revised.
It’s becoming both more modularised, and better structured, so we are (just) containing the complexity and model size as it grows. We’ve made a number of simplifications, which have reduced the model size from what it would have become, which would otherwise have made it unworkable long ago.
What you see in the images here is a very small fraction of the whole building, and only the exterior. There’s a lot more going on inside, too.