The wide-angle principle is based on illuminating an existing problem as broadly as possible in order to develop new possible solutions. Both too narrow a view and too broad a view can lead to erroneous or false findings.
The wide-angle principle therefore requires a careful procedure. It takes advantage of the fact that constructive ideas are more likely to be gained from a broader view of a problem than from one that is too narrow, since valuable ideas are not excluded from the outset. In further steps, a broad perspective can then be narrowed successively and purposefully.