Negligible senescence in mammals: if a shark can live to be 500 years old, so could we. (Senescence is probably an adaptation to fixed size habitats, so individuals don't outcompete their offspring.) https://www.thetimes.co.uk/article/scientists-examine-fishy-tale-of-centuries-old-shark-w56gtjfh2?shareToken=cd6976852a34fff7873786f8ecd20773 …
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Replying to @Plinz
also, iirc sponges live forever (well, as long as they have clean water and food supply)... so could sharks?
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Replying to @makc3d
No multicellular animal can live forever if the cells need to preserve differentiation. Cell with different phenotype but the same DNA need to store complex state beyond the DNA, and that gets fragmented like a hard drive over time.
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Replying to @Plinz
look, every female can rebuild young human from scratch inside her body. just extract that code and make it work on your own body, ok. it's not a rocket science, lol )
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Replying to @makc3d
The hydra turritopsis does that: it can revert to a stage where the cells lose differentiation, and rebuilds. But you'd lose all of your memories.
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Replying to @Plinz
do you know how dolphins do not drown when sleeping? they have only half of brain to sleep. same here, you can rebuild small part of your brain, wait until it learns back its memories from the rest of it, then repeat. assuming the memories are duplicated, like in RAID
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Replying to @makc3d
Why not just breed a new clone with perfect body from scratch and give it the best memories we can invent? We can also make the clone believe that it was once us.
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Replying to @Plinz
one step from here to "why clone and not offspring". evolution has already done that
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Replying to @makc3d
but look at how terrible most of the results turn out to be, we can do better
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Replying to @Plinz
I would imagine someone who can do better, but "we"? I kind of doubt it ) Unless someone comes up with good brain2brain interface in like 10 years
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Genetic engineering is now a kitchen table technology.
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