Marcos Dione on Nostr: what happens to the parts of the secondary waves that are not in the tangent? Are ...

what happens to the parts of the secondary waves that are not in the tangent? Are they lost? Do they interfere and cancel each other? Are they experienced from another point of view? If the light I see in the tangential wavefront is almost the same intensity of the original light, does it mean that the points in the secondary waves all have the same intensity? It seems I'm getting into territory way beyond what I 'know'.