Seeing is Believing

This might be one of the best explanations I’ve read so far.

Rationalising The Universe

What is the basis of human belief regarding the existence of independent objects? When it comes to the sciences the basis is often that classic (yet often misused) word ‘proof’ … but what is it that constitutes proof in the scientific world? Humans like to take what we can see as quite solid evidence for the proof of an external object’s existence. If we see a chair in front of us and then we sit down upon it and it performs its dutiful function of upholding our weight then we can quite confidently take this as proof that the chair actually exists. This is the commonly held philosophical viewpoint known as realism. But what about when it comes to objects like electrons, protons and quarks – we definitely cannot see these entities with a microscope, let alone the human eye, how then do we infer proof of their existence?  These quantum scale…

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