Who needs evidence? What is evidence, anyway? What is it good for?
Let’s take it from the top.
What is Evidence?
We all know what evidence is. It’s that thing President Trump lacked when he claimed voter fraud cost him the popular vote. Or when he claimed China fabricated climate change.
Evidence, the noun, can be defined in the following ways:
- Something that furnishes proof (Merriam-Webster);
- Knowledge on which to base belief (Vocabulary.com); and
- The available body of facts or information indicating whether a belief or proposition is true or valid (Oxford Dictionaries)
As an aside, I find it rather unfortunate that I have to pay for use of the Oxford English Dictionary—a dictionary (and so much more) distinct from the Oxford Dictionaries. Fie on them for charging for such a treasure trove of English!
Who Needs Evidence?
Why is Evidence Important?
Before I begin: no. The previous section is not suspiciously terse. Everyone needs evidence whether they like it or not.
Human civilization depends on evidence for quite a number of things including philosophy, law, science, and technology. Without it, where would we be? Without evidence, we could expect defendants in a court of law to be convicted based on caprice or whimsy rather than by establishing guilt through facts, information, and argument. Many medical practices and treatments are wholly dependent on well-designed experiments and empirical data validating their efficacy; this field is known as evidence-based medicine. How apropos! The whole scientific enterprise is grounded in claims that can be verified or falsified through measurement, observation, experimentation, and the replicability of such experiments.