All right, it makes sense. I thought that memory IS used in larger quantities in more power-hungry computations. Nevertheless, it is still a bubble. When you are lifting from launchpad, radius on the ground gets smaller and smaller, eventually getting out of range of simulation. There would be enough time for parts to land. And again, if your computer is capable to calculate all parts during the spontaneous disassembly, it will be able to calculate them until you order a cleanup and recovery of all surviving parts for cash. Besides, it would be good to let people with more powerful machines to decide about this radius by themselves.