[niemandhier]

Notably, synthesized waves generated through transcranial optogenetic stimulation substantially potentiated cerebrospinal fluid-to-interstitial fluid perfusion.

No wonder Musk is interested in this area of research.

This line indicates that with an optigenetic implant you can substitute sleep with something more efficient.

[Staple_Diet]

I'm sorry but your comment is incredibly I'll informed.

Not only because you think Musk is any where near the leader in the implant space, but more so that you don't understand optogenetics. The device referenced here was transcranial (i.e., non-invasive) but regardless optogenetics requires tagging specific neurons with an opsin (usually via viral vector).

I'm sorry for being curt but this is the 4th or 5th neuroscience post in the last 72h that HN have blasted with shit takes. If I wanted misunderstood science I'd revive my Reddit account.

[niemandhier]

I am very aware how optogenetics works, I wasted some part of my live getting channelrhodopsins into cells to trigger neurons.

Yes you are right one would probably use transient gene therapy tho make a modification like that, but transcranial methods are afaik for human adults less suitable since the structures lying above the stuff you usually want to stimulate are simply too thick, so a hypothetical sleep replacement machine would probably need to be an implant. That is unless you can use self-refocusing lasers or holograms for stimulation, but I do not see how one would do this unless you replace most of the skull with glass.

The point with Musk was a joke more or less.

Though it’s true that he is probably the only person both morally ambiguous enough to even try to build a dystopian sleep replacement machine and capable of getting funding for it.

Maybe a Reddit account is a good idea.

[deprecative]

HN is great but it's only illusory that it has smarter people than Reddit. We're all just people rising to our incompetence to the limit the system allows.