well that made me feel old (2nd edition)

Liz: I can't believe that Space Jam is 20 years old.
Me: No, it's not!
Liz: Yes, it is!
Me: But it was made in the 90s! I was born in the 90s!
[Silence as Liz waited for me to make the connection]
Me: And I'm 20...

Does anybody else struggle with making these connections, or is it just me?