Ten thousand world systems I keep pondering over the below questions and thought of posting it here.

Is the physical universe(the one we observe with stars, galaxies, black holes etc) contained in the 31 planes of existence or the other way around?
A &quot;ten thousand world systems&quot; imply that there are other universes besides ours, which gives support to the multiverse hypothesis in science?
Are there ten thousand of world systems or infinite of them? Just trying to ponder if its infinite, then imagine the probability of being born as a human and able to understand dhamma, that is mind blowing. That also goes to show the sheer magnitude of samsara.
The planes are closer to what we mean by dimensions of a system.
All that can be known to exist can be measured &amp; thought about as a system of information, energy or just formation.
The conception &amp; perception of the system occurs within the system. It is a closed system of all information. We can not have information about a beyond the scope of information, can't know the unknowable.
if one could infer information about something which is analogical to the system of energy or information wherein thinking occurs then that would make the two systems conjoined &amp; connected by inference, it would create a paradox where one conceives of two general systems of information which are neither connected nor are separated.
It's a fallacy and is proven by contradiction to be an impossible assertion.
There is one system, it is perceived &amp; conceived in &amp; by itself here or there by this or that being.
Planes are fields &amp; classes of perception which are a scope of the alliness of formation.
The system is thought to change as it persists and has one most powerful percepient at it's any given state, in the doctrine of self that is either a Buddha or a Brahma.
There are sub systems within this system and these collectively are what is spoken of as a ten thousandfold world system, each is said to have earth, sun, humans, four kings &amp; a sakka god.
When a Buddha arises in the world the this 10 thousandfold system is said to shake.
But we don't see a Buddha or anyone go from one human like system to another, eg we don't see Buddha meeting multiple Sakkas kings of gods.
It is philosophically difficult to work out why not. I have some idea but i don't think this has been addressed anywhere in the texts. I don't see much point in going to detail as to my understanding at this point.
The cosmology of Buddhism isn't philosophically simple and is closer to astrophysics theory. Eg sutta speak of dark cosmic voids where the light of the moon &amp; sun doesn't reach and nobody seems to know what is being spoken of.