@ MF: If the alien was looking through a microscope, yes. If we assume our alien is a similar multi-celled largish species, perhaps not. The prevelance and impact of bacteria is inarguable, but their immediate perceptibility (is that a word?) is rather less so. But you correctly read my quote marks. My exalted opinion of the value of humanity is derived purely from the fact that I'm human, and quite keen on us as a species. Especially if we carry out our broader social responsibilities.
@RJ: Aren't we hitting on the great flaw in liberalism here? You (and I, if I'm not being argumentative) would agree that animal research is justified, but understand that others may feel squeamish about it and have a measure of sensitivity towards their feelings.
But the fanatic insists that harming animals is a great, unrightable wrong ... greater than the threat of disease (after all, if you don't die of one thing, you'll die of another). Going back to my point about a broader social responsibility (in the planetary sense), it is hardly illogical to argue that the suffering of individual humans who actively engage in animal testing, or are complicit by their relationships with those who do, is less relevant when set against the suffering of the animal kingdom as a whole.
In a way it's simply the mirror image of your own viewpoint, and as such is quite difficult to argue against without ultimately being forced to assert that your value set is inherently superior to someone else's.
Hence, liberalism is doomed. Cardigan wearers will become extinct and the Guardian will go out of business. Discuss!
