Hilarity. The room bubbles with laughter. Just enough transgression.
I remember in that moment bubbling with rage. A famous and well-regarded paragon of the field [1] who had recently come to the university to give a talk spent his career characterizing animal emotions, especially of mice and rats. He revealed their rich emotional worlds in glorious detail. The presentor, his advisor, many of us in the department knew -- or should have -- how un-funny the joke was. We were perfectly positioned to know it.
Despite knowing what I knew, I didn't say anything. That silence is still among the top few of my regrets. I guess I learned the weight of doing the right thing in a packed room full of people with contrary opinions, and learned that I was way less strong / bold / principled than I had believed myself to be; which was remarkable, as that bar was already low.
Machines are just physical systems that perform some work. This includes cells, biological systems etc
If we built a human from scratch at atom level detail then it would be reasonable assume it would experience the world as we would. By definition you would have created consciousness.
I'm not sure whether this clone would or not, but we don't have a good basis for either. If we built one, we should act like it does experience things, but that's on moral, not scientific grounds.
Do you disagree with the idea that with knowledge and time humans have the potential create any material thing?
If that's a reasonable thing to assume. Then we could simply just build a human from scratch.
Then, add on the entirely subjective experience each of us has of consciousness: it's not obvious that subjectivity is created or come from machines. Each of us has one good example, and the rest is intuition, induction. At best, "You can build machines like us, because we ourselves are the proof," is a wishful project, rather than a proof.
Or, more horrifyingly, our own subjective experience may be an illusion and maybe the concept of sentience is not really meaningful
The quantitative argument is a red herring. Science is one of the disciplines in the business of explaining things, not in the business of calculating values, but it just so happens that when you get into the details, quantifying properties leads to better explanations. For example, I can give a qualitative explanation for why it rains, which can be expanded into a quantitative one.
The subjectivity of experience can be attributed to the scientifically-explainable inability of our conscious mind to directly access the physical state of the brain. If arguments such as "Mary the Neuroscientist" show anything, it is that phenomenal experiences can not be conveyed by any language, scientific or otherwise, so if you are demanding an explanation must do that, neither science nor philosophy nor anything else will explain consciousness.
Consciousness, being internal and subjective, exists at odds with anything else that science considers. Sure, study cognition and neurology, but there's an ontological gap between those and experience.
I'd say time is very real, and an inescapable part of experience (no experience without change). As for time being the most real, we only know it through experience, so I think of it as secondary, along with space, etc.