Two ways for the Sun to become a Black hole

Having its mass squeezed down to the size that its density has created a
black hole(few miles in size). Next way the Sun keeps its mass density
the same(almost twice that as water and is the size of the solar system.
It is possible a quasar fits as a black hole the size of our solar
system. This shows big is equivalent to small. Big falls at the same
rate as small. Does small have a minimum size? Does big have a maximum
size? Are micro objects obeying the same laws as macro objects(I think
not) Accelerating motion can make objects weigh more than the same
object at rest(That means it gained a greater force of gravity) Cern has
given us the weight measurements. Bert