Original sentence: It is the radius for a given mass where, if that mass could be compressed to fit within that radius, no force (aside from those expressly found in quantum mechanics) could stop it from continuing to collapse into a gravitational singularity.This can be extended to show that an object of any density can be large enough to fall within its own Schwarzchild radius:.Though an object may fit within its Schwarzchild radius, in order to become a black hole its mass must also exceed the Chandrasekhar limit; while our Sun is certainly larger than its Schwarzchild radius (see solar radius), it is destined to become a white dwarf instead of a black hole
Edited sentence: It is coincidental that Schwarzschild also means "black shield", which is befitting for the idea of a black hole.It is the radius for a given mass where, if that mass could be compressed to fit within that radius, no force could stop it from continuing to collapse into a gravitational singularity