Gah...
The science thing again...although not in an off-topic board. It's spreading like a plague.
The idea behind science is that you assume you know nothing until you can show it through experiment. Experimental evidence doesn't lie--it is a factual phenomena with an explanation, but sometimes man can have a flawed interpretation of the evidence (read: man can have a wrong explanation). I would cite the existence of other flying creatures on earth as evidence that most people thought flight was possible. Even the Greeks have myths about humans flying (remember the wax wings that melted if you got too close to the sun?)...that really predates old Leo there (not that I'm saying da Vinci wasn't a creative mastermind, but the idea of humans flying isn't his originally).
The scientific community at large has a certain interpretation of all the evidence available. As new evidence becomes available, the interpretations are examined and adjusted to account for it. There was one quote from SMAC's University leader that says it all: to paraphrase, there are two kinds of scientific progress: the instantaneous revelation that changes everything, and the slow accumulation of new knowledge and changes. The former is far more rare than the latter, but it gets all the attention.
The science thing again...although not in an off-topic board. It's spreading like a plague.
The idea behind science is that you assume you know nothing until you can show it through experiment. Experimental evidence doesn't lie--it is a factual phenomena with an explanation, but sometimes man can have a flawed interpretation of the evidence (read: man can have a wrong explanation). I would cite the existence of other flying creatures on earth as evidence that most people thought flight was possible. Even the Greeks have myths about humans flying (remember the wax wings that melted if you got too close to the sun?)...that really predates old Leo there (not that I'm saying da Vinci wasn't a creative mastermind, but the idea of humans flying isn't his originally).
The scientific community at large has a certain interpretation of all the evidence available. As new evidence becomes available, the interpretations are examined and adjusted to account for it. There was one quote from SMAC's University leader that says it all: to paraphrase, there are two kinds of scientific progress: the instantaneous revelation that changes everything, and the slow accumulation of new knowledge and changes. The former is far more rare than the latter, but it gets all the attention.