General Discussion

but there are many other ways of reliably demonstrating its existence. Not so for auras - there is no empirical evidence of any kind that they exist.

BTW, physicists don't say all things have energy and energy waves.

Saying one cannot say with certainty that there is no such thing as an aura is a logical fallacy (asking to prove a negative). I cannot say with certainty that there are no flying cows but it seems highly doubtful especially in view of the absence of evidence.

If some people claim they can see what most of us can't, it is up to them to provide credible evidence for the claim - it is not up to anyone else to "prove" they can't.

Also BTW, so called psychics who claim they can detect auras have been debunked without exception (James Randi for example has tested their claims):

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James Randi was a prominent scientific skeptic who debunked claims regarding the existence of human auras by subjecting self-proclaimed aura readers to controlled, scientific tests. He demonstrated that these "readers" could not accurately identify the presence of individuals behind screens, revealing that such perceptions were not based on physical reality.

Key details regarding Randi's work on auras:

Failed Tests: In televised and controlled tests, aura-seers failed to identify when people were standing behind screens, often misidentifying empty spaces as having people.
Mechanism: Randi often explained that purported "aura reading" was a form of cold reading or self-delusion rather than a perception of a spiritual energy field.

The Million Dollar Challenge: As part of his broader $1 million paranormal challenge, Randi offered a prize to anyone who could prove their ability to see or read auras under agreed-upon conditions, a challenge that remained unclaimed.

Goal: His objective was to highlight the lack of empirical evidence for such supernatural claims and to expose the deceptive techniques used by practitioners.
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Here's a YouTube of one of his trials: