An interesting proposition but i'm not sure it holds up. After all, bacteria are everywhere in huge numbers and getting harder and harder to kill, all without the capacity to suffer.
SW-User
@Pikachu I beg to differ. The very reason bacterial resistance is becoming more common is the overuse of antibiotics and the resultant ability of bacteria to adapt so it's harder to kill them. No brain then no suffering is actually in the grey area because microorganisms can be stimulated like the sensory nervous system and then there's also the stress responses to adverse stimuli.
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SW-User
@FaithfulDamagedSoul They don't experience it the same way as humans and you may be right but recent research has found that that they're capable of 'feeling' the world around them and are capable of complex decision making. Suffering involves thoughts and judgement so evidence suggests primitive creatures evolved from them.
