How can I be dumb when my discernment detect there's no wall or tunnel in your metaphor?

You must have bad English or something
Let me explain
1. You are in a long hallway
2. You shout “ joe biden suck”
3. The long hallway echo back “joe biden suck”
Perhaps it's the other way around. You're the dumb guy who doesn't know anything how echo works. FYI, echo doesn't bounce back. Echo help the sound to travel in long distance as long as the sound is produced with a strong frequency. I have numerous hallways in my tiny house. When I shout some words, they don't come back. The sound dies after it reaches at short distance.
Here's the perfect example how echo works in a tunnel.
https://youtu.be/XSkZAvGWsmM