I understand the concept just fine. It's your selective use of the definition I'm mocking.
It’s obvious you don’t understand the concept of same and different. You can’t even tell the difference between yourself and some other person who is one of two people you can’t tell apart. You can’t tell the difference between quoting and quote mining. You can’t tell the difference between a lady a pig. You can’t tell the difference between a liberal and a conservative. You can’t tell the difference between reality and a drug induced state. Clearly, you do not understand the concept of same and different.