What is the definition of a "kind"?
As I've pointed out several times on RF, proof is only relevant in math, logic, and liquor, so don't look to science to do any such thing. However, what science does have are theories. In science a theory is an explanation of some aspect of the natural world that can, in accordance with the scientific method, be repeatedly tested, using a predefined protocol of observations and experiments. In other words theories arise out of confirmation and reconfirmation. And the neat thing about them is that they may be rejected or modified if they don't fit new empirical findings. And this is how the science community understands any pronouncement of theory, no matter how strongly stated it may be: it's not carved in stone. Trouble is, lay people don't understand this. They think scientific theory is like their uncle George's theory that the Kennedy assassination was carried out by the Mafia; a theory he is convinced is fact. Science NEVER regards its theories as fact, but only "a well-substantiated [falsifiable] explanation of some aspect of the natural world, based on a body of facts that have been
repeatedly confirmed through observation and experiment."
Source: Wikipedia
And this is exactly how science understands macroevolution; a concept of the origin of diversity of life on earth grounded in theories that have so far stood up to all challenges brought against them. Want to show that macroevolution is wrong? then go after its supporting theories, because simply challenging science to prove its conclusion won't get you the time of day.
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