Why Science Cannot Ground All Knowledge
by Lenny Esposito
Is science the best, most assured way of learning about reality? In the minds of more and more people, the answer is “yes.” Yesterday, I highlighted a quote from scientist Peter Atkins on how he relies upon science to inform him about the world, dismissing even the consideration of God’s existence as “lazy.” But, relying on science as the only arbiter for judging the verity of truth claims will never work, because science cannot function as one’s starting point.
When explaining reality, everyone must have a starting point. For example, one may observe an event, such as a strike of lightning, and ask “what makes that happen?” A person may respond by describing how a storm cell moving across the land scrapes off electrons until the charge is to such a degree they rush back to the ground, which is reasonable scientific. The first person would be justified in asking “how do you know that?” More conversations could ensue about the structure of atoms, experimental testing and predictions, etc. But each tome, the questioner could ask for further justification for the facts being presented. Sooner or later, there must be a starting point for science.
Four Assumptions Scientist Must Hold
Assuming the questioner drives his respondent back further and further (i.e. “But, how do you know that?”) one will quickly see the scientific method relies upon several assumptions. The first is the world will behave consistently. Scientists assume that because electrons have behaved in a certain way in the past, they will also do so tomorrow, and next week, and fifty billion years from now. Science cannot prove this; the scientist must assume it to make predictions.
Secondly, in order to draw any conclusions at all, scientists must assume logic takes us towards the truth. Without logic, one could never infer anything…
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