Because you have to wonder now.
3 seconds sound clip from the The Matrix movie soundboard.
You can hear this line at 01:05:43 in the Blu-ray version of the movie.
Quote context
[...]
- If you close your eyes, it almost feels like you're eating runny eggs.
- Do you know what it really reminds me of? Tasty Wheat. Did you ever eat Tasty Wheat?
- No, but technically, neither did you.
- That's exactly my point. Exactly.
- Because you have to wonder now.
- How do the machines really know what Tasty Wheat tasted like. Huh!
- Maybe what I think Tasty Wheat tasted like actually tasted like... oatmeal or tuna fish.
- That makes you wonder about a lot of things.
[...]