[SirRolin]

but thing is we called it that because we thought there was nothing smaller than a atom.. although there is something smaller.

atoms are made of protons neutrons and electrons each which is made of 3 quantoms.

[smrq]

And similarly, we called it a universe because nothing observable can be outside it. Unless...

The analogy is quite apt, really, just switching out bigness in place of smallness.

[Kubuxu]

Same with universe, we think it encompasses everything but according to our current definition it might now.

[sgt101]

I think it's commonly held that an entities Universe is everything that has or could physically interact with that entity. So, everything that is out of the light cone for you is external to your universe.

[msla]

> atoms are made of protons neutrons and electrons each which is made of 3 quantoms.

Electrons are currently thought to be indivisible, and protons and neutrons are made of three quarks each.

I've never heard of the word "quantom" before... where does it come from?