Sorry if I have not understood this correctly... But neutron star density is pretty much the 'last point at which physics still makes sense' - but a black hole introduces lots of issues... That's why I was looking at the neutron star density.
I'm not that good with maths - but will see if...
I’ve seen some answers - but they don’t account for the kind of compression you would get by bringing it all together.
For example, you will get an answer like, “If we convert it all to hydrogen/helium, then the sphere would be >200 light years”.
Most science programmes etc will discuss the...
Specifically, if you took all the regular matter that we believe to be in the universe and condensed it down to ‘neutron star’ levels of compression (Rather than ‘black hole’ levels)...
How big a sphere would it make?
I’ve always wondered, but never seen an answer posted anywhere
Hopefully...
My name is Andrzej and I co-founded a technology news and reviews publication. I have questions related to physics from time to time and this seems like a place to get answers from the community 😊