As technology progresses, it will probably be possible to scan human brains and make digital copies. With the digital copies, and further study, at some point

As technology progresses, it will probably be possible to scan human brains and make digital copies. With the digital copies, and further study, at some point humans will likely fully decode and know exactly how brains work. At that point, there isn't any magic or mystery. You can create androids who are as equally intelligent as humans. Maybe we will place some limits or restrictions on them, as safeguards, but no telling how that will work out as time goes by. We might not be too far away from such a day, relatively speaking. Maybe it will take another 25 to 50 years. But it looks like we will get there, if we don't self destruct before then via nuclear war or some other catastrophe.