What would happen to companies without LOGO's?

Logo Is So important for both the companies and the clients , As humans our mind catches photos faster than nouns or sounds that means that clients would forget easily the company's name,and in the other hand companies without logos doesn't get recognition and can't have a successful advertising campain.Also a GOOD Logo Help attracting clients eyes -if it colorful and creative-

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just to be brief : Logos are so So important and companies without logos won't get to the top for sure :D

Regards