500
what is two way of forgetting, and explain, and tell me the way to not forget certain information.
1. Decay : one way to forget, when memory is not used for a long time
2. Displacement : one way to forget, when memory store runs out of the space
3. to not forget, you need to revise, recall, and rehearse the information, and give the information connection, by giving it a meaning so that that information become important to you.