But cats don't invent vaccines, develope sophisticated machines to prolong life, etc. Humans sustain the lives of themselves for far longer than "survival of the fittest" would allow in nature.
But in the end, you're probably still right. The effect of our medical sophistication will be to sustain ourselves until something overwhelming comes along, and quite possibly wipes out the human race rather than just weeds it out.
Some bacteriologist guy said we're about 2 mutations away from a fatal, incurable air-borne virus that could wipe out the human race. AIDS might very well have done it, had it been airborne. The only way we finally got a handle on how to neutralize it was after years of research, and we won't have the luxury of those years if something more infective comes along.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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