１、
Ordinary people don't raise these questions in the first place.
But a scientist who can ask good questions thinks.
The number of stars in the night sky is as large as the area of the sky (sediments).
The space between the stars is a vacuum.
Therefore, the night sky is full of light emitted by the stars and it is dazzlingly bright, but it is actually dark.
But in reality, it is dark.
Strange. ＝Paradox
It seems that Olbers was the first person to wonder about this.
Olbers' answer was that the light from distant stars is so far away that it has not yet reached us on earth.
The light of distant stars is too far away to reach us on earth.
The answer is that the light from distant stars is too far away to reach us here on earth.
Does this answer make sense?
Everyone seems to agree with this answer.
I think
I think this good answer of Olbers' paradox is
I think it's crazy.
It has found a 13.1 billion light year quasar in a space telescope?
We can see 13.1 billion light years of light.
This light is reaching the earth, albeit faintly.
It is reaching us, even if it is faint.
The fact that this light is faint
It indicates that the night sky is not bright.
The real question is why it is dark while light in the distance is reaching us.
is the real question.
Olbers' solution is wrong.
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２、
https://jp.voicetube.com/videos/8347
Thsi woman's answer if the light from the distant star is pretty much red-red- red... shifted.
This argument is not quolitative though..
So this pardox is still in dispute...
3, Solution No. 3 wikipedia
Essentially the same as the redshift of 2. =.
The discovery of the cosmic background radiation in 1965, along with the development of cosmology, has allowed for a more modern interpretation of the nature of the actual darkness in the night sky. Based on this, the cosmic darkness we see today is neither an infinite void of nothingness nor invisible stars, but rather the state of the universe some time after the Big Bang 13.7 billion years ago. Until 380,000 years after the Big Bang, light could not move freely in the universe because the nucleus and electrons were scattered. When the universe cooled to 3000 K as it expanded, atoms were formed and light could move freely for the first time. This is known as the cosmic clearing. The thermal radiation from this moment is cooled by the redshift caused by the expansion of the universe, and is stretched to a temperature of 2.7 K, about 1000 times its wavelength, which is mainly composed of microwave radio waves that cannot be perceived by the eye. The dark background of the night sky we see today is in fact covered by such radiation of the primordial cosmic glow[7].
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