/sci/ - Science & Math

[Anonymous No.11324030]

how much of the human brain is replaceable until the original consciousness dies?

[Anonymous No.11324042]

>>11324030

Depends on if you consent or not.

[Anonymous No.11324057]

>>11324030
You could replace all of it as long the continuity of the process is maintained.
A neuron-sized robot swims up to a neuron and scans it into memory. A computer starts simulating the neuron. The robot waits until the neuron perfectly matches its simulation inside the computer, and then replaces the neuron with itself as smoothly as possible, sending inputs to the computer and transmitting outputs from the simulation of a neuron inside the computer.
This entire procedure has had no effect on the flow of information in the brain, except that one neuron's worth of processing is now being done inside a computer instead of a neuron. Repeat, neuron by neuron, until the entire brain is composed of robot neurons whose guts are inside the computer.

[Anonymous No.11324072]

>>11324057
to use the computing analogy, a specific consciousness is the specific run time of neural processes on a brain?

[Anonymous No.11324083]

>>11324057
You've made no provisions for the activation waves that stimulate your neurons, so you'd have a braindead computer model.

[Anonymous No.11324335]

>>11324083
And these activation waves are generated by what exactly?

As long as you keep all sensory input and neuronal activity identical, why would the waves be missing?

[Anonymous No.11324615]

It deteriorates progressively until the idea of original consciousness doesn't really apply. Like you wouldn't call them conscious way before all the elements had been removed. depending on which order you remove stuff you could keep more consciousness or more appearance of consciousness, but either way you would say they are gone before you had removed the last items.

[Anonymous No.11324634]

>>11324057
>You could replace all of it as long the continuity of the process is maintained.
There is no actual reason to believe there's a special kind of continuity that dictates whether or not a copied over "consciousness" shares in an identity with its source state or not. The way identity is used as a concept with moments of brain activity next to each other along the temporal axis is a fiction of convenience, not a real physical thing you could carry over or fail to carry over.

[Anonymous No.11324656]

>>11324030
Rather than ask yourself how much of the brain you can replace, it would be more constructive to consider an arbitrary function (as on a computer) and then ask yourself how much of it you can replace before it stops being itself. Focusing too much on the meat will mislead you.

[Anonymous No.11324669]

>>11324030
>how much of the human brain is replaceable
none of it