This depends on the number of degrees of freedom of your model - the dimension of its parameter space. This is why we have tools like https://en.wikipedia.org/w

This depends on the number of degrees of freedom of your model - the dimension of its parameter space. This is why we have tools like https://en.wikipedia.org/wiki/Tornado_diagram https://en.wikipedia.org/wiki/Tornado_diagram and https://en.wikipedia.org/wiki/Analysis_of_variance https://en.wikipedia.org/wiki/Analysis_of_variance: to keep the model's size under control, while still allowing for adjustments to its parameters in the future.