Live data from Hacker News

Living human brain cells play DOOM on a CL1 [video]

youtube.com

71–80 of 291 posts

Re: Living human brain cells play DOOM on a CL1 [video]

#71

It is going to be quite the ethical dilemma if/when these machines produce text output comparable to a modern LLM...

When they answer back to us in personal pronouns, we will always be wondering if it is like LLM just putting most probable words together or something really sentient.

When someone makes a virtual girlfriend of it, is it really a disembodied person or just a smart answering machine?

A whole lot of ethical and psychological issues are to open up here.

Re: Living human brain cells play DOOM on a CL1 [video]

#72
post #64

Earlier quoted context omitted.

Hinduism is probably right. Every system of sufficient complexity is probably sentient - even if in the ways we at our level can not fathom.

I'm a (non-practicing) Dwaitin Hindu. AFAICT, there's no mainstream school of Hindu philosophy (there are three) espouses that view. Although, Advaitins come very close to it with their four mahavakyas. IMO, Integrated Information theory of consciousness (IIT) is exactly that. Everything is conscious, the difference is only in the degree to which they are conscious.

Oh, thank you very much enlightening me! All the time I misunderstood! I guess then IIT it is for me :-)

Re: Living human brain cells play DOOM on a CL1 [video]

#73
The part I can't get past, where would you source live human brain cells?

Does anyone have insight into how you would even start to source or grow/create the cells?

Also the machines look very organic and clearly have to keep the cells alive. Do they have to change them out every so often?

Re: Living human brain cells play DOOM on a CL1 [video]

#74

Earlier quoted context omitted.

I looked into it. They're not feeding the framebuffer to the neurons, but have a "signal" when an enemy is on screen to some of the tissue's inputs, and how to locate it in the x/y axis, and have outputs for the character to turn right or left or fire. It's "see this input signal, send these output signals", which seems consistent with the title. It seems they grow the neural tissue on a chip the neurons can interfac…

> We know this is only 200,000 neurons. Dogs have 500 million. Humans have billions. But where is the line for sentience, awareness? Have we defined it? If this concern is genuine, I think the first step is to embrace veganism. Because while we don't know the exact offset, it's pretty obvious a dog or a pig reaches it > What are the plans to scale up? I don't know, slavery on an unimaginable scale? That's where AI is…

I think "MMAcevedo" basically nails it: https://qntm.org/mmacevedo

Re: Living human brain cells play DOOM on a CL1 [video]

#75

The part I can't get past, where would you source live human brain cells? Does anyone have insight into how you would even start to source or grow/create the cells? Also the machines look very organic and clearly have to keep the cells alive. Do they have to change them out every so often?

I think the Thought Emporium youtube channel has some explanatory [videos](https://www.youtube.com/watch?v=bEXefdbQDjw) of the whole process. I couldn't wrap my head around the thing tho.

Re: Living human brain cells play DOOM on a CL1 [video]

#76

Earlier quoted context omitted.

I looked into it. They're not feeding the framebuffer to the neurons, but have a "signal" when an enemy is on screen to some of the tissue's inputs, and how to locate it in the x/y axis, and have outputs for the character to turn right or left or fire. It's "see this input signal, send these output signals", which seems consistent with the title. It seems they grow the neural tissue on a chip the neurons can interfac…

200k now, reasonably speaking a few million is within reach, which is reptile/fish range, the terrifying thing is though that if they train this to imitate humans (which they will) who knows how many orders of magnitude of efficiency gains you get (in terms of neurons needed for a certain level of consciousness) versus natural organisms that are dependent on natural evolution and need to support other bodily function…

It seems unlikely that we would be more efficient at achieve consensus than evolution which can hand craft neural structures via feedback loops across millions of generations.

Especially when this demo needs 200k neurons when organizations with vastly fewer neurons have more complex behaviors.

Re: Living human brain cells play DOOM on a CL1 [video]

#77

The part I can't get past, where would you source live human brain cells? Does anyone have insight into how you would even start to source or grow/create the cells? Also the machines look very organic and clearly have to keep the cells alive. Do they have to change them out every so often?

There's a number of "immortal" human cell lines dating back to as far as the 1950s (you may have heard of Henrietta Lacks? [1] and the immortal HeLa cell line).

Today there are several immortalized neuron cell lines used in research to model neuronal function, like HeLa but of neuron type obviously, that are also typically derived from tumours (e.g., SH-SY5Y, PC12) or immortalized via genetic modification (e.g., v-myc) like CTX0E03 [2] which was designed to allow for continuous growth in the presence of particular reagents.

1. https://en.wikipedia.org/wiki/Henrietta_Lacks

2. https://www.prnewswire.com/news-releases/reneuron-announces-...

Re: Living human brain cells play DOOM on a CL1 [video]

#79
post #74

Earlier quoted context omitted.

> We know this is only 200,000 neurons. Dogs have 500 million. Humans have billions. But where is the line for sentience, awareness? Have we defined it? If this concern is genuine, I think the first step is to embrace veganism. Because while we don't know the exact offset, it's pretty obvious a dog or a pig reaches it > What are the plans to scale up? I don't know, slavery on an unimaginable scale? That's where AI is…

I think "MMAcevedo" basically nails it: https://qntm.org/mmacevedo

I don't think it's a best example. MMAcevedo is about running a real human mind on a different substrate (for science, for labor, or to torture it for fun a million times, I guess, by a bored teenager who got the image from torrents).

Scaling up these neuron cultures is rather something like "head cheese" from Greg Egan's "Rifters" novels (artificial "brains" trained to do network filtering, anti-malware combat etc.).

Post reply on HN