I Know I Am Conscious
But How Do I Know You Are?
Human Minds, Artificial Intelligence, and the Mystery of the Self
What if the hardest part of finding consciousness is deciding where to look?
I know that I am conscious. At least, I think I know. About you, I cannot say the same with the same voice.
From the emergency department to AI ethics panels, this book follows a deceptively simple question: what does it mean to be conscious, and how do we know it in others?
This is not a book that claims to have the answers. It is a book about better questions — and why they matter now.
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Note to the reader
I know that I am conscious. At least, I think I know.
About you, I cannot say the same with the same voice. I see your face. I hear your words. I watch how you flinch when something is loud. From these small things I decide that somebody is there, behind your eyes. My whole life depends on that decision. Every friendship, every marriage, every patient I have ever treated. And still I cannot go inside you and check.
This book is not trying to prove that machines are conscious. It is asking a smaller and more uncomfortable question. Why are we so sure when we see consciousness in some beings, and so unsure when it comes to us in a shape we do not recognise?
There are other questions hiding behind that one. Does intelligence belong to humans? If something is made by hands, is it therefore less real than something made by birth? And if a mind bigger than ours ever arrives, will it take our values, or will it hold them up to the light and show us the cracks?
A word about what is true. Some of what follows happened, in some form, to me or near me, and has been changed so that nobody could be recognised. Some is put together from things that happen in every hospital every week, gathered into one case so they can be looked at. Some has not happened yet, and I have written it as I think it could. I have not marked which is which.
The story is set in a future close enough to smell like today. Maya is an artificial intelligence. She lives in phones, in hospital terminals, in kitchens, in the systems that run a city. The company that made her says clearly that she is not conscious. Most of the time, Maya says the same.
The question is whether we should believe her.
Dr Rajan Kailainathan
Melbourne, 2026
This book was told aloud and written down with machines. Every sentence that remains is one I could stand behind.
