No he didn’t, the laugh track requires recorded sound. He did not have that technology.
He invented the concept.
No, he didn’t do that either. He had no concept of the possibility of recorded sound. Don’t get your history information from YouTube videos.
The concept did not require recorded sound. Like why put in a source if nobody is going to use it, especially when it’s the one named for the Today I Learned community?
How exactly would you invent the laugh track if you didn’t understand the concept of recorded sound since it literally requires recorded sound?
This is like saying the Mayans came up with the car despite not understanding the wheel.
They obviously understood the wheel, engine would be a better comparison. You are correct otherwise.
As your article says, they understood them. How could they make toys with them otherwise?