Why is concise alternative text crucial for images?

Concise alternative text is crucial for images primarily because it prevents screen reader confusion. When users rely on screen readers to access content, they benefit from clear and to-the-point descriptions that accurately reflect the image's purpose or function. If the alternative text is overly detailed or provides irrelevant information, it can overwhelm or mislead users, making it difficult for them to understand the context or significance of the image within the overall content. By keeping the alternative text succinct and relevant, it ensures that users receive the necessary information without distraction, enhancing their browsing experience and fostering better comprehension of the material being presented. This approach aligns with the principles of web accessibility, where the goal is to provide equal access to information for all users, including those with disabilities.