Limitation in Sending Videos on Every Topic
There are certain limitations when it comes to sending videos on every topic. Here are some reasons why it may not be possible to send videos on every topic:

1. Availability of Content
- Not all topics have readily available video content that is suitable for sharing.
- Some topics may be too niche or specialized to have existing video resources.

2. Educational Value
- The quality and educational value of the videos need to be considered before sharing them.
- Some topics may require in-depth explanations or demonstrations that are better suited for other forms of content such as text or images.

3. Copyright and Legal Issues
- It is important to respect copyright laws when sharing videos on specific topics.
- Some topics may have copyrighted material that cannot be shared without permission.

4. Technical Limitations
- Technical constraints such as file size, format compatibility, and internet speed may prevent the sharing of videos on certain topics.
- Some platforms may have restrictions on the type of content that can be shared.

Conclusion
While videos can be a great educational tool, there are limitations to consider when it comes to sharing them on every topic. It is important to evaluate the availability, educational value, legal considerations, and technical constraints before sending videos on a specific topic.