Implicit memory is to explicit memory as is to automatic processing; effortful processing the spacing effect; the testing effect iconic memory; echoic memory short-term memory; long-term memory

Implicit memory is to explicit memory as "automatic processing" is to "effortful processing".

Explicit memory is a memory that can be deliberately and intentionally reviewed. This is your memory of riding a bicycle, of falling over the handlebars and cleaning your knee. The other is implicit memory, which is an experiential or utilitarian type of memory that can't be deliberately reviewed. This is your memory of how to ride a bicycle or how to adjust. These are frequently not attached to a visual memory but rather are more similar to muscle memory.

who were inferior and deserved to be nothing but workers and servers because the bible at that time did not say anything about black men being normal or equal.