A thought experiment.
The Schwarzchild radius is the distance to which an object of a given mass must be compressed before it’s surface gravity would disallow the escape of light. That is, it is the size to which an object of some mass M must be compressed before becoming a black hole. It is given a definition as follows:
r < M * 2G/c^2
Where r is the Schwarzchild radius, M is the mass of the object, G the gravitational constant of the universe, and c the speed of light. We can some up with the minimum r by simply asserting this inequality as an equality and solving.
I am roughly 2 meters tall.
Imagine a pile of horse shit. Find that, by solving the Schwarzchild radius equation about for ‘M’, and using a radius of size 1m (assuming I am an otherwise featureless sphere, centered at my geometric centroid), you will find that you require approximately 6 * 10^29 kg of mass to form a black hole the size of my person. That is approximately 1/10th the mass of the sun.
I feel roughly like that compressed pile of horse shit.
DISCLAIMER: I’m sick, if I got the math wrong. I don’t really care.