Why does advertising become ineffective after a certain point?

Advertising becomes ineffective after a certain point due to diminishing returns, where repeated exposure leads to audience fatigue and reduced impact. Consumers can become desensitized to a message, resulting in reduced attention and engagement. Additionally, excessive advertising can create negative associations with a brand, leading to annoyance rather than persuasion. Ultimately, a balanced approach that includes varied messaging and channels is necessary to maintain effectiveness.