Physical models help visualise in a different way to models on a computer. Models in physical form are a great way to experiment and convey ideas easier than a 2D sketch may..

In creating physical models, the process of experimentation becomes much simpler as you can see the ideas in real time and can determine the viability of the idea much faster. While building physical models is helpful, technology is still a very helpful tool in helping to envisage scenarios and ideas that may not be easy to convey physically.