TIL calling `CustomStringConvertible.description` property directly is discouraged

Interesting discussion How to avoid calling CustomStringConvertible.description as a property?

Documentation CustomStringConvertible.description states:

Calling this property directly is discouraged. Instead, convert an instance of any type to a string by using the String(describing:) initializer. This initializer works with any type, and uses the custom description property for types that conform to CustomStringConvertible.

Hmm. It’s interesting that documentation doesn’t mention why String(describing:) is the preferred method of converting a value of any type to a String`.