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In our immediate perception electrons are not seen and their existence must be inferred.

Are we in the same position as say the ancient greeks were when they were speculating that the Earth was a sphere, in that this was inferred, but no direct observation was possible. Of course today that is no longer true, the Earth is observably seen to be a sphere by a select few.

It doesn't appear to me to be so. It's easy to imagine if only we could gain a vantage point far enough from the Earth we could see it was a sphere, but the same supposition for an electon doesn't appear to work - of course one could say if only we were small enough to directly observe an electron, and on the face of it this seems similar to the above; but whereas translations of ourselves are easily observed, the same does not go for our diminuition. We do observe animals & insects much smaller than ourselves so perhaps that could be used as a justification.

Of course we could reverse the imagined process and suppose if only we could make the electron visible to the naked eye by somehow magnifying it. In fact this is possible if not with electrons then for atoms (using an electon-scanning microscope).

But is this only making visible our inference, rather than showing existence directly? Or can the positioning of apparatus between electrons and ourselves be held to be of the same quality as between ourselves and our own eyes when viewed mechanically?

I take it we cannot assume, even though they admit a mathematical description, that electrons to exist in a platonic realm in say the same way as numbers do.

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Too broad question, envolves perhaps realism, antirealism, instrumentalism, analytic and synthetic differences, a priori knowledge, etc. – Ricardo Bevilaqua Feb 12 at 15:45
What do you mean by "showing existence directly"? Photons hit molecules in our eyes which isomerize and hyperpolarize the cell, decreasing transmission to the next cells which activate as a result, (etc. etc. etc. etc. for several dozen steps, many of which we don't know). And you call this direct?! – Rex Kerr Feb 12 at 17:03
@Kerr: direct to your consciousness in terms of our given embodied nature. It's easy to see once you reflect on it that there are physical processes involved which can be minutely examined and categorised if you're into that. – Mozibur Ullah Feb 12 at 18:20
@Bevilqua: I think you're right - it is too broad. – Mozibur Ullah Feb 12 at 18:26
Closing for the time being pending a little specification of the concern :) – Joseph Weissman Mar 14 at 23:46

closed as not a real question by Joseph Weissman Mar 14 at 23:46

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.

1 Answer

This question, reading it a bit broader, asks wether the entities that (good) theories postulate are real or not.

According to Ian Hacking, by looking through different microscopes that are manufactured differently while observing the same object every time, we can be sure it exists.

Also, using something in an experiment indicates that an entity is real. So let´s suppose you shoot electrons onto a plant, then since you can shoot electrons, they exist.

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