Actually, the first part was a joke, if it hadn't been I would also have mentioned Washington's bad teeth, Polk's sterility, Lincoln's color blindness, Teddy's nearsightedness and whole list of maladies suffered by former presidents. Also, since polio isn't a genetic disease and is rather a viral one for which there isn't genetic resistance (unless some undo!@#$%^&*ented person somewhere which we would probably never know anyway), my statement that passing on of polio susceptible genes was in itself a joke of absurdity. Please don't tell me when I'm not joking as I think I have a better handle on that than you do , if I was actually serious about that crap I'd be a frickin Nazi. What I was referring to in the example of Prof. Hawking is that in survival of the fittest, disregarding morality, where the individual is concerned with individual survival and propogation to continue the species, and not survival of the species as a whole, the resources that must be spent to keep alive an individual that can't sustain itself would be detrimental to others with a better chance. Again, basic genetics dictates that traits that increase chances for successful repro. are passed on with greater frequency while those that have no effect or decrease those chances become rarer. On that basis, a species genepool that doesn't take that extra effort to include deleterious genes is, on the whole, stronger and better suited to survival. Yes, it's possible that an individual with great genetic weaknesses could actually enhance chances of survival of the whole species indirectly (genetically speaking), the risks have to be weighted in the immediate sense of available resources and possible advantages against immediate disadvantages. My Quantum Physics/whales analogy was maybe a little confusing, but put it in another way: Say a wolf is born that can understand calculus, but can't walk. Is the rest of the pack better served risking survival on the chance that calculus will help the rest of them survive, or by letting nature take it's course? My joking answer is yes, because dude, you have a wolf that knows calculus! My serious answer is no, because that's a big bet for the rest of them to take. Again let me point out that this is all just hypothetical and that I DON'T believe think people with disabilities should be exterminated. Thankfully, we are a species that values intelligence, morality, and the benefits that the individual can bring to society, regardless of whether those contributions have a concrete effect on survival. And Falcon, never, because anyone who likes the !@#$%^&*ans can't be president.