Argument that need to be repair

Argument: Babies cannot talk. So Alex Jr. cannot talk.

Analysis: This can be a strong argument. However, it does missing the premises to make it a strong and valid argument. If it add that "Alex Jr. is a baby," than this argument will be a valid argument. Without that statement, people may argue or ask what if Alex Jr. is mute or he has some kind of surgery and cannot talk for a period of time. With no premises, this argument seem to be begging the questions from other people because there are many other solutions. This argument can also be  mistaking the claim as well. Since there is no premise, many people may think that the missing premise, "Alex Jr. is a baby" is the conclusion. Other people might miss the real conclusion, "Alex Jr. cannot talk." This will lead to the miss understanding of the claim for the argument, which is consist to be a content fallacies.