The literal `"Ferris"` is a slice, i.e. a (const) pointer, which in this case will even point a part of to the data section of the binary. The String version is

The literal `"Ferris"` is a slice, i.e. a (const) pointer, which in this case will even point a part of to the data section of the binary. The String version is dynamically allocated and can be changed, can grow, etc.