There was no difficulty at all. That meant something was fishy.
But this was not the time to talk about it. After all, Harry and Neville did not need to know any more. It was better not to drag them into something of this level.
Why did Su Ming feel that something was wrong? The answer was simple.
As everyone knew, Neville had suffered from amnesia as a child. He had now recovered as his body and soul grew stronger, but why was it that the moment Su Ming mentioned Ancient Magic, he could immediately recall such a long story?
Was it because he was curious about Voldemort's Horcruxes? Or was it because his brain had been damaged as a child and he had never practiced Occlumency, making his memories especially susceptible to outside influence?
Professor McGonagall had found nothing. Severus and Harry could only provide a rough line of thought. Those responses were all normal, but when it came to Neville, it felt as though someone had tampered with things. He remembered the entire matter as vividly as if it had happened yesterday, which did not conform to the laws of human memory.
Su Ming himself had an extraordinarily strong memory because he had been enhanced by Miracle Serum. But although Neville was a wizard, wizards were no different from Muggles in terms of physical constitution. They were all human.
Research by the German psychologist Herman Ebbinghaus had found that forgetting began immediately after learning, and the process of forgetting was not uniform.
Forgetting happened quickly at first, then gradually slowed. He believed that "retention and forgetting are functions of time," and based on his experimental results, he plotted a curve describing the process of forgetting—the famous Ebbinghaus forgetting curve.
In 1885, he published his experimental report, showing that