You need to be very careful and sensitive in this situation, as any hint of age discrimination could lead to resentment and could even violate company policy or labor laws. Here are some possible explanations you can try to communicate in a positive and professional way: 1. **Emphasize the core goal of the meeting**: Explain that the core goal of this meeting is to explore new ideas and innovation opportunities, so a special focus is placed on inviting people who are actively involved in innovative projects in the company. This is not a question of the ability or experience of other employees, but a choice based on the needs of the specific meeting. 2. **Express the importance of experience**: Emphasize that the company values the contributions and experience of all employees, and point out that older employees have irreplaceable roles and value in other important projects and decisions. 3. **Provide other opportunities for participation**: Let older employees know that there are many other projects and meetings where their experience and wisdom are crucial, and you can provide specific opportunities for participation to let them know that there are other occasions where they can play an important role. 4. **Explain that this is an experimental arrangement**: If possible, you can explain that this arrangement is an experimental approach to test the response and contribution of a specific group of people in terms of innovative thinking, and this does not mean that this strategy will become a long-term policy. 5. **Encourage diverse ways of contribution**: Invite them to provide opinions and share suggestions in the summary and feedback session after the meeting to help the company better integrate the advantages of employees of different ages. Most importantly, ensure that communication is full of respect and recognition, and avoid making any employee feel excluded or unfair, so as to maintain a good working atmosphere and team cohesion.