Conciousness

Conciousness is not understood nor, in my opinion, understandable. What physical process could possibly create awareness? Could a robot (or a computer) be concious? If it were how would we know? Conciousness is not the same as intelligence. Machines can be intelligent. People speculate on whether dogs or other animals are concious. I believe they are but have no way of knowing. The only conciousness I can be sure of is my own. It is unique to me and to my lifetime. We have an enormous amount of memory stored in our brains. We may not be able to describe in detail our drive to work but we notice if something changes. The amount of memory we are aware of at one time is very limited. I have no awareness of anything that happened before I was born and don't expect any after I die. Suppose I hadn't been born. After all, the chances of my having been must be infintessimal. And even more improbable is my being alive today. My lifetime is not even a blink in the age of the earth. Suppose time could be reset. I wish I were 19 again. If I were I wouldn't know anything about the future. Time is the only one of Einstein's four dimensions that is unidirectional. That is supposedly guaranteed by the law of increasing entropy.