Truthiness and Falsiness

True or False? When we do experiments in science, or perhaps concerned about a case, or perhaps just some sentences someone spoken, it may be true or false. How do we test for the truth of objects?

Our brain is evolved such that, as long as we have at least one proof, we evaluate it to be true. For example, someone said the sun is up in the sky, we saw the sun up in the sky, yes, we believe the sun is up in the sky, it's true. From one's perspective, our sense of sight gives the strongest "proof feeling" than other sense, perhaps we believe what we see is what is true (even though this is not true, as illusion is not). However, scientifically, this is not a good way to prove items.

The above case tries to prove for truthiness, that is, finding a proof to evaluate something originally deemed false to become something true. In science, you want to prove something true by proving that it's not false. Usually, you can only prove something is false after it's been proven "true". That is, you want to change its state from "true" to "false". Of course, if that's always the case, we wouldn't have science advancement anyways. Science create something called "hypothesis", which we say, assume what we expect is "true", then we try to falsify our statement. Example hypothesis: "the sun is up in the sky". So, when we find evidence, we want to prove that the sun is not up in the sky. If we cannot find that evidence, we can safely say that, the sun is up in the sky.

For one, if you really, really, want to prove something is true. Try both methods! You first prove something is true, then you prove something is not false. If you can prove that an evidence exist, and prove that the evidence is not mal-informing (it not false evidence), then perhaps we can safely say, the evidence is true.