Why is almost everything squared in physics?² Could it be because of a universal geometrical process?

Could the reason why so many equations in physics are squared represent
aspects of a single truth based on just one geometrical process? The
most famous of these equations is Einstein’s energy equals mass times
the speed of light squared and this is typical of physics equations that
are squared. It is normally the speed of light and velocity that are
squared. But what is significant is that the inverse square law does not
just apply to Newton’s universal law of gravitation it also applies to
electric magnetic light. This video will put forward the idea that this
is because gravity is a secondary force to electromagnetism with the
whole of physics being based on one geometrical process.