Final answer:
According to Ebbinghaus, we forget due to storage decay, which is the fading of memories over time.
Step-by-step explanation:
According to Ebbinghaus, we forget due to storage decay, which is the fading of memories over time. Ebbinghaus conducted experiments where he measured how much he retained when attempting to relearn lists of nonsense syllables at different time intervals. He found that an average person loses 50% of memorized information after 20 minutes and 70% after 24 hours. This shows that our memory for new information decays quickly and then levels out.