“It’s worth thinking about.”
That is perhaps a useful place to start. What makes an idea worth thinking about? I suppose this depends on your values.
The first two values that come to my mind are: growth, and illumination. It is worth thinking about if it’s an expansion or deepening. It’s worth thinking about if it sheds light on something that was previous in the dark. It’s worth thinking about if it makes someone feel seen, which garners connection. If it softens us to someone. If it opens us.