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Is the Star, Proxima Centauri Real?
Proxima Centauri is 4.264 light years away
- Proxima Centauri, the closest star to our own, is still 40,208,000,000,000 km away. (Or about 268,770 AU or 4.264 light years away).
It is visible via a telescope with an aperture of at least 8 cm
- It has apparent visual magnitude 11, so a telescope with an aperture of at least 8 cm (3.1 in) is needed to observe it, even under ideal viewing conditions—under clear, dark skies with Proxima Centauri well above the horizon.
https://en.wikipedia.org/wiki/Proxima_Centauri#
But the fact [FSK] is Proxima Centauri in real time t1, may not exists anymore, i.e. could have died long ago in real time.
Therefore what is real to the philosophical realists is merely a 4.264 light years of historical light waves.
Thus PH definition of "what is fact" i.e. a feature of reality that is just-is, being-so, that is the case, state of affairs, cannot hold water.
Because in real time to, the Sun, Proxima Centauri, may not exist at all; if it exists it would be a totally different Sun from what it is perceived via a telescope.
I believe other than the Sun Proxima Centauri, there are Suns which we can see via telescope via Hubble or JamesWebb that actually had died at t1.
Note Betelgeuse Star Is Dying Before Our Eyes,
https://www.youtube.com/watch?v=2Na72eehQMQ
Betelgeuse is 120 million light years away,
thus the real Betelgeuse could at our real time t1 would have already died.
Thus what Philosophical Realists observing Betelgeuse as real dying Star deemed according to Philosophical Realism [mind independent] as real is actually in real time t1 is an illusion.
They are merely interacting with a 120 million light years old HISTORICAL light waves and not the real star at t1.
Philosophical realists may insist there was a star, 1080 trillion years ago, but the past cannot be really real. What is real is NOW, the present.
From the above, we can prove that philosophical realism based on the assumption of mind-independence is not realistic, i.e. do not reflect reality.
This is because there is a REALITY GAP between what is observed and what is really out there.
Because of this REALITY-GAP, there is no way philosophical realists can ever claim they know what is really real out there, thus the basis that it is likely to be illusory.
The example of a the Star, Proxima Centauri and Betelgeuse is very clear cut to prove philosophical realism can never be realistic due to the inevitable REALITY-GAP in terms of light years.
While it may not be obvious, there is still a REALITY-GAP with everyday experiences of seeing, touching a table independent of mind out there.
Whilst the REALITY_GAP in this case may not in terms of light years, there is a REALITY-GAP of nano-seconds.
The presence of a REALITY_GAP [regardless of distance and time] from Philosophical Realism implies that philosophical realism can never be realistic.
On the other hand, with anti-philosophical-realism [Kantian] what is real is always conditioned and qualified to a human-based FSK of which the scientific-FSK is the most credible and reliable thus, the most objective and realistic.
There is no REALITY-GAP with anti-philosophical-realism because whatever is real is because the FSK said so, e.g. the science-cosmological FSK said so or science-biology said so of which are reliable and credible that is opened for criticisms.
My point;
the above illustrations prove philosophical realism [mind-independence] is never realistic but rather is clinging to illusions.