Comments by "Trazyn" (@Trazynn) on "See How Easily a Rat Can Wriggle Up Your Toilet | National Geographic" video.

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  8. Andro Nom I don't draw any lines, it's a gradual scale of sentience. The consideration of each being should be derived from it's level of sentience. Insects have a nervous system but lack the capacity for sentience or feeling. Their behaviour is complex but still completely reflexive. I'd still give them more consideration than plants however.  It gets interesting for vertebrates and certain cephalopods. This group of species all shares the same core brain. The more advanced the species the more brain layers they posses and the more properties of sentience they start to have. This moves from fish<reptiles<birds<mammals with one more tier for the sea mammals and primates and perhaps one exclusive for humans but that difference should be quite slight.  We can make rough estimates how each of these tiers experience the world because we have all the brain layers they have. We have a fish brain processing our primal instincts, pain, hunger, fear reproduction etc, we have the mammal brain giving us social needs and we have the advanced neo-cortex giving us rationality, self-awareness and time projections.  One extra caveat needs to be made for advanced senses. Many animals have much more advanced senses than humans do even though they may not have the type of sentience that could make them suffer through it.   Special care needs to be taken for animals with sensitive organs AND high sentience. A dog could suffer from air pollution than a human does and a marine mammal will suffer from captivity due to the echoes it constantly have to deal with in confined spaces.  Anyway, this is the system of ethics I consider the most valid. If you want a more complete explanation on the scale of suffering I suggest you google Peter Singer.  If you're more interested in the philosophical ramifications of how these ethics become a moral code then I suggest the excellent book 'The Moral Landscape' by Sam Harris.
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  25. +Defenders of tomorrow Imagine a universe where there's no sentient beings. Nothing except lots of spectacular forces of nature physics clashing, colliding, fusing and exploding. Although it would've been a very grand and impressive place to be, I'd say that that place has no morality. There's no right and wrong as there is no being that is able to value anything that happens in that universe. In that same way there also wouldn't be any morality in the raging hurricanes of Jupiter or within complicated crystals on Mars. Nobody would be better or worse depending on what happens in these places. Back to our place. Now we have a planet filled with lots of beings able to experience life. They're all born with senses, experiences and preferences. To varying degrees they're able to suffer and enjoy their own existence, and whether or not they suffer and enjoy their own existence depends on the behaviour and choices of other, similar beings. That is where morality starts happening. We can roughly imagine the absolute worst possible planet to be on. One with permanent suffering for everyone. We can also imagine multiple ways in which that terrible planet would be better for everyone involved. It'd be impossible to imagine a Jupiter that is better or worse than this Jupiter, nothing turns on it. Same for the insentient universe or the non-experiencing crystals on Mars. They exist but there's nothing to value that existence. Only of course, if you say 'I value the crystals on Mars' which means you've started to include a sentient being, like yourself, into the model. Whether or choices move us down to that 'worst planet possible' or take us up to one of the many 'better worlds for everyone' is where ethics and morality become relevant. And in that sense I believe you can derive universal rights and wrongs. Physics may be descriptive but biology at some point becomes normative.
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