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Thursday, April 16, 2020 10:46:02 AM
You inserted yourself in the debate between Flip and myself.
Basically yes. Forum discussion is not restricted to two participants.
There should never be "several" assumptions when one will do. Do we agree?
Well, I wouldn't have defined it quite like that personally.
This is an interesting blog on the topic:-
"How to Use Occam’s Razor Without Getting Cut"
https://fs.blog/2019/10/occams-razor/
From which:-
Examples of the Use of Occam’s Razor
The Development of Scientific Theories
Occam’s razor is frequently used by scientists, in particular for theoretical matters. The simpler a hypothesis is, the more easily it can be proven or falsified. A complex explanation for a phenomenon involves many factors which can be difficult to test or lead to issues with the repeatability of an experiment. As a consequence, the simplest solution which is consistent with the existing data is preferred. However, it is common for new data to allow hypotheses to become more complex over time. Scientists choose to opt for the simplest solution as the current data permits, while remaining open to the possibility of future research allowing for greater complexity.
The version used by scientists can best be summarized as:
When you have two competing theories that make exactly the same predictions, the simpler one is better.
The use of Occam’s razor in science is also a matter of practicality. Obtaining funding for simpler hypotheses tends to be easier, as they are often cheaper to prove.
Albert Einstein referred to Occam’s razor when developing his theory of special relativity. He formulated his own version: “It can scarcely be denied that the supreme goal of all theory is to make the irreducible basic elements as simple and as few as possible without having to surrender the adequate representation of a single datum of experience.” Or, “Everything should be made as simple as possible, but not simpler.”
The physicist Stephen Hawking advocates for Occam’s razor in A Brief History of Time:
We could still imagine that there is a set of laws that determines events completely for some supernatural being, who could observe the present state of the universe without disturbing it. However, such models of the universe are not of much interest to us mortals. It seems better to employ the principle known as Occam’s razor and cut out all the features of the theory that cannot be observed.
Isaac Newton used Occam’s razor too when developing his theories. Newton stated: “We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances.” He sought to make his theories, including the three laws of motion, as simple as possible, with only the necessary minimum of underlying assumptions.
Medicine
Modern doctors use a version of Occam’s razor, stating that they should look for the fewest possible causes to explain their patient’s multiple symptoms, and give preference to the most likely causes. A doctor we know often repeats the aphorism that “common things are common.” Interns are instructed, “when you hear hoofbeats, think horses, not zebras.” For example, a person displaying influenza-like symptoms during an epidemic would be considered more likely to be suffering from influenza than an alternative, rarer disease. Making minimal diagnoses reduces the risk of over-treating a patient, causing panic, or causing dangerous interactions between different treatments. This is of particular importance within the current medical model, where patients are likely to see numerous health specialists and communication between them can be poor.
It's a hugely flawed notion imo, anyway.
And potentially dangerous in the field of medicine, (which is why the last para of that quote should come with a health warning..).
I'm sure many of us have experienced a medical misdiagnosis or a failed diagnosis, because the physician didn't look beyond the obvious or commonplace.
So you present at the doctor with blinding headaches, and he tells you you have a migraine.
But actually you have a glioblastoma.
And the Occam's razor principle is sometimes used as justification for confirmation bias!
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