>>>>> I understand that the unaided human eye, under suitable circumstances,
>>>>> can detect a single quantum of light impinging on the retina.
>>>>> That strikes me as being a quantum event perceived without the aid of
>>>>> any machine.

>>>> JE:-
>>>> I don't think that the perception of one photon via the unaided human
>>>> eye (if true) would validly allow the claim that the human eye can
>>>> perceive unaided, one quantum event.

>>> If the mind of that human perceives what his/her eye detected, which is
>>> implied, most others would allow it, and justifiably so.

> Virgil gmale.com> wrote:-

>> You choose to DEFINE quantum events as those imperceptible to humans
>> without some sort of mechanical assistance.
>> I do not.

>
> JE:-
> No, I argued (above) that quantum changes cannot be perceived using just
> the human senses. IOW, a machine is required to observe a quantum change.