What is the David Copperfield death saw illusion?

The David Copperfield death saw illusion is a famous magic trick in which the magician appears to be sawed in half by a large saw while lying on a platform. The performance creates the illusion that his body is split into two sections, with his legs and upper body seemingly separated. Copperfield then miraculously reassembles himself, revealing that he is unharmed. This illusion combines elements of suspense, theatricality, and misdirection, showcasing Copperfield's skill as a magician.