The table shows how to simplify some key equations in Physics without any loss of information and of course without changing the laws of physics. The method: Planck units replace SI-units.

As simple as possible without distortion of information.

By the way, getting rid of units also can have didactical and mathetical disadvantages: Units help to check whether a calculation makes sense.

Example for an excellent and as simple as possible (and yet not too simple) textbook which uses the traditional SI-units: