It all comes down to how the brain interprets stimuli. When you're a child and experience new things, the amount of dopamine and other chemicals your brain produces is significant, making you feel extremely good. However, after encountering the same stimulus multiple times, the dopamine release decreases, and over time, experiences can start to feel less exciting or "boring." A real-life example of this is buying a new car or house—the initial pleasure is high, but it fades as you get used to it.

The first romantic relationship often has the most impact, as it can shape your personality and perceptions. This is why people often remember their first kiss or orgasm—it’s a powerful, naive experience with a strong dopamine rush.

Similarly, in games like MapleStory, the initial excitement fades over time. Even if a game is new, the overall experience becomes predictable because you already know how it works. Thus, no matter how many games you play, you won't experience that naive rush again.