What are the differences between idea A and idea B?

Can idea A be compared with other ideas?

Smallest comparison is 2 ideas:

• "How are UX and UI design different?"
• "What are the main differences between mind mapping and concept mapping?"

Harder comparisons for better idea sex:

• "What's the difference between smart design and intelligent design?"
• "How are mindfullness and meditation different?"
• "Is it possible to be kind without being compassionate?"

The harder you make the contrast, the less obvious the differences are, the more interesting the ideas you are going to have coming out of idea sex.