Can cats understand what humans say?
Cat's memory
Cats are actually very smart animals. They have good memory and observation skills. They can indeed learn to recognize their own name and have some level of understanding of human commands or language.
Reasons why cats don’t respond
Whether they respond to their owner's calls or commands depends on a number of factors, including their personality, mood and state at the time. Some cats may choose to ignore their owner's calls because they may be busy with other activities, or they may not be interested or willing to respond.
In addition, cats often display autonomy and independence, and they do not follow their owner's instructions like dogs. This is one of the reasons why some people like to keep cats, because the independence of cats makes people feel particularly attractive.
To summarize, cats do understand human language and commands, but whether they choose to respond depends on a variety of factors, including their personality and emotional state.