Metaphorical line between knowledge and belief ?

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brainstorm said:
If I miss some finer nuance that you claim is irritating that I miss, my question to you is whether it was explicit? If it wasn't, then the "teacher" needs to learn to better explicate what was missed.

If an issue appears repeatedly in your interactions with people, then it is likely to be your issue.
 
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apeiron said:
If an issue appears repeatedly in your interactions with people, then it is likely to be your issue.

"likely" isn't good enough to establish certainty. Provide an example for analysis and I'll apologize if I was at fault.
 


brainstorm said:
"likely" isn't good enough to establish certainty. Provide an example for analysis and I'll apologize if I was at fault.

Try https://www.physicsforums.com/showpost.php?p=2664214&postcount=20

Originally Posted by brainstorm
You can measure an imaginary unicorn...

Yeah, you can't measure imaginary things. You can pretend to, but that's totally irrelevant to anything we're discussing.

I'm trying to keep this on track here. I think we'd all appreciate a little effort.
 


apeiron said:
Try https://www.physicsforums.com/showpost.php?p=2664214&postcount=20

Originally Posted by brainstorm
You can measure an imaginary unicorn...

Yeah, you can't measure imaginary things. You can pretend to, but that's totally irrelevant to anything we're discussing.

I'm trying to keep this on track here. I think we'd all appreciate a little effort.

The point was that no proof of existence is necessary for the act of measurement. All that is necessary is a unit of comparison, an object to represent the unit, and a logic for comparing the unit object with the thing to be measured.

People were arguing that for something to be measured it had to be real, or that measurability proves that something is real. The unicorn example was to show that reality-status has nothing to do with measurability.