That's only a "problem" if you assume human exceptionalism and begging the question. It's completely irrelevant to the actual problem. The human is just a cog in the machine, there is no reason to assume they would ever gain any understanding, as they are not the entity that is generating Chinese.
To make it a little easier to understand:
* go read about the x86 instruction
* take an .exe file
* manually execute it with pen&paper
Do you think you understand what the .exe does? Do you think understanding the .exe is required to execute it?
To make it a little easier to understand:
* go read about the x86 instruction
* take an .exe file
* manually execute it with pen&paper
Do you think you understand what the .exe does? Do you think understanding the .exe is required to execute it?