How effective is spoken language?

Spoken language can be an effective way to communicate knowledge, as demonstrated by an exercise where one person described images for their blindfolded partner to draw. However, spoken language also faces limitations, as descriptions require clear and shared understanding of vocabulary, and knowledge related to abstract concepts or processes may be harder to convey solely through words. Overall, while spoken language allowed knowledge sharing in drawing simple images, its effectiveness depends on the topic and ability to clarify any misunderstandings that arise.