> So what's alive, the numbers? Maybe the silicon holding the numbers? What if we print them out? Does the book become conscious?
Indeed, those are exactly the questions you need to ponder.
It might also help to consider that human brain itself is made of cells, and cells are made of various pieces that are all very obviously machines; we're able to look as, identify and catalogue those pieces, and as complex as molecular nanotech can be, the individual parts are very obviously not alive by themselves, much less thinking or conscious.
So when you yourself are engaging in thought, such as when writing a comment, what exactly do you think is alive? The proton pumps? Cellular walls? The proteins? If you assemble them into chemically stable blobs, and have them glue to each other, does the resulting brain become conscious?
> Even if you're a materialist, surely you think there is a difference between a human brain and a brain on a lab table.
Imagine I'm so great a surgeon that I can take a brain out someone, keep in on a lab table for a while, and then put it back in, and have that someone recover (at least well enough to they can be interviewed before they die). Do you think is fundamentally impossible? Or do you believe the human brain somehow transmutes into a "brain on a lab table" as it leaves the body, and then transmutes back when plugged back in? Can you describe the nature of that process?
> You take a dead persons brain, run some current through it and it jumps. Do you believe this equivalent to a living human being?
Well, if you the current precisely enough, sure. Just because we can't currently demonstrate that on a human brain (though we're getting pretty close to it with animals), doesn't mean the idea is unsound.
Indeed, those are exactly the questions you need to ponder.
It might also help to consider that human brain itself is made of cells, and cells are made of various pieces that are all very obviously machines; we're able to look as, identify and catalogue those pieces, and as complex as molecular nanotech can be, the individual parts are very obviously not alive by themselves, much less thinking or conscious.
So when you yourself are engaging in thought, such as when writing a comment, what exactly do you think is alive? The proton pumps? Cellular walls? The proteins? If you assemble them into chemically stable blobs, and have them glue to each other, does the resulting brain become conscious?
> Even if you're a materialist, surely you think there is a difference between a human brain and a brain on a lab table.
Imagine I'm so great a surgeon that I can take a brain out someone, keep in on a lab table for a while, and then put it back in, and have that someone recover (at least well enough to they can be interviewed before they die). Do you think is fundamentally impossible? Or do you believe the human brain somehow transmutes into a "brain on a lab table" as it leaves the body, and then transmutes back when plugged back in? Can you describe the nature of that process?
> You take a dead persons brain, run some current through it and it jumps. Do you believe this equivalent to a living human being?
Well, if you the current precisely enough, sure. Just because we can't currently demonstrate that on a human brain (though we're getting pretty close to it with animals), doesn't mean the idea is unsound.